Home / 261,875.32-392,805.20-72,347.06

Finding the Fourth Proportional to 261,875.32, 392,805.20 and 72,347.06

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Solution

The fourth proportional to 261,875.32, 392,805.20 and 72,347.06 is: 108,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,875.32 : 392,805.20 = 72,347.06 : x
  2. Step 2: Convert to fraction form
    261,875.32/392,805.20 = 72,347.06/x
  3. Step 3: Cross multiply
    261,875.32x = 392,805.20 × 72,347.06
  4. Step 4: Simplify right side
    261,875.32x = 28,418,301,372.71
  5. Step 5: Solve for x
    x = 28,418,301,372.71/261,875.32
  6. Step 6: Final answer
    x = 108,518.44

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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.