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Finding the Fourth Proportional to 517,238.87, 775,857.69 and 162,280.26

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Solution

The fourth proportional to 517,238.87, 775,857.69 and 162,280.26 is: 243,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,238.87 : 775,857.69 = 162,280.26 : x
  2. Step 2: Convert to fraction form
    517,238.87/775,857.69 = 162,280.26/x
  3. Step 3: Cross multiply
    517,238.87x = 775,857.69 × 162,280.26
  4. Step 4: Simplify right side
    517,238.87x = 125,906,387,656.20
  5. Step 5: Solve for x
    x = 125,906,387,656.20/517,238.87
  6. Step 6: Final answer
    x = 243,420.20

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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.