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Finding the Fourth Proportional to 314,685.78, 472,192.56 and 125,105.64

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Solution

The fourth proportional to 314,685.78, 472,192.56 and 125,105.64 is: 187,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,685.78 : 472,192.56 = 125,105.64 : x
  2. Step 2: Convert to fraction form
    314,685.78/472,192.56 = 125,105.64/x
  3. Step 3: Cross multiply
    314,685.78x = 472,192.56 × 125,105.64
  4. Step 4: Simplify right side
    314,685.78x = 59,073,952,422.04
  5. Step 5: Solve for x
    x = 59,073,952,422.04/314,685.78
  6. Step 6: Final answer
    x = 187,723.62

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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.