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Finding the Fourth Proportional to 517,499.80, 776,249.70 and 162,549.70

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Solution

The fourth proportional to 517,499.80, 776,249.70 and 162,549.70 is: 243,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,499.80 : 776,249.70 = 162,549.70 : x
  2. Step 2: Convert to fraction form
    517,499.80/776,249.70 = 162,549.70/x
  3. Step 3: Cross multiply
    517,499.80x = 776,249.70 × 162,549.70
  4. Step 4: Simplify right side
    517,499.80x = 126,179,155,860.09
  5. Step 5: Solve for x
    x = 126,179,155,860.09/517,499.80
  6. Step 6: Final answer
    x = 243,824.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.