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Finding the Fourth Proportional to 261,599.76, 392,632.92 and 121,437.36

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Solution

The fourth proportional to 261,599.76, 392,632.92 and 121,437.36 is: 182,264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,599.76 : 392,632.92 = 121,437.36 : x
  2. Step 2: Convert to fraction form
    261,599.76/392,632.92 = 121,437.36/x
  3. Step 3: Cross multiply
    261,599.76x = 392,632.92 × 121,437.36
  4. Step 4: Simplify right side
    261,599.76x = 47,680,305,253.89
  5. Step 5: Solve for x
    x = 47,680,305,253.89/261,599.76
  6. Step 6: Final answer
    x = 182,264.33

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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.