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Finding the Fourth Proportional to 292,891.50, 439,337.26 and 71,275.50

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Solution

The fourth proportional to 292,891.50, 439,337.26 and 71,275.50 is: 106,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,891.50 : 439,337.26 = 71,275.50 : x
  2. Step 2: Convert to fraction form
    292,891.50/439,337.26 = 71,275.50/x
  3. Step 3: Cross multiply
    292,891.50x = 439,337.26 × 71,275.50
  4. Step 4: Simplify right side
    292,891.50x = 31,313,982,875.13
  5. Step 5: Solve for x
    x = 31,313,982,875.13/292,891.50
  6. Step 6: Final answer
    x = 106,913.25

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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.