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Finding the Fourth Proportional to 517,071.45, 775,607.39 and 162,113.14

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Solution

The fourth proportional to 517,071.45, 775,607.39 and 162,113.14 is: 243,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,071.45 : 775,607.39 = 162,113.14 : x
  2. Step 2: Convert to fraction form
    517,071.45/775,607.39 = 162,113.14/x
  3. Step 3: Cross multiply
    517,071.45x = 775,607.39 × 162,113.14
  4. Step 4: Simplify right side
    517,071.45x = 125,736,149,400.11
  5. Step 5: Solve for x
    x = 125,736,149,400.11/517,071.45
  6. Step 6: Final answer
    x = 243,169.78

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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.