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Finding the Fourth Proportional to 517,433.40, 776,150.10 and 218,251.80

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Solution

The fourth proportional to 517,433.40, 776,150.10 and 218,251.80 is: 327,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,433.40 : 776,150.10 = 218,251.80 : x
  2. Step 2: Convert to fraction form
    517,433.40/776,150.10 = 218,251.80/x
  3. Step 3: Cross multiply
    517,433.40x = 776,150.10 × 218,251.80
  4. Step 4: Simplify right side
    517,433.40x = 169,396,156,395.18
  5. Step 5: Solve for x
    x = 169,396,156,395.18/517,433.40
  6. Step 6: Final answer
    x = 327,377.70

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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.