Home / 261,560.63-392,344.59-74,572.13

Finding the Fourth Proportional to 261,560.63, 392,344.59 and 74,572.13

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Solution

The fourth proportional to 261,560.63, 392,344.59 and 74,572.13 is: 111,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,560.63 : 392,344.59 = 74,572.13 : x
  2. Step 2: Convert to fraction form
    261,560.63/392,344.59 = 74,572.13/x
  3. Step 3: Cross multiply
    261,560.63x = 392,344.59 × 74,572.13
  4. Step 4: Simplify right side
    261,560.63x = 29,257,969,808.55
  5. Step 5: Solve for x
    x = 29,257,969,808.55/261,560.63
  6. Step 6: Final answer
    x = 111,859.23

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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.