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Finding the Fourth Proportional to 261,460.74, 392,192.84 and 71,941.13

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Solution

The fourth proportional to 261,460.74, 392,192.84 and 71,941.13 is: 107,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,460.74 : 392,192.84 = 71,941.13 : x
  2. Step 2: Convert to fraction form
    261,460.74/392,192.84 = 71,941.13/x
  3. Step 3: Cross multiply
    261,460.74x = 392,192.84 × 71,941.13
  4. Step 4: Simplify right side
    261,460.74x = 28,214,793,766.84
  5. Step 5: Solve for x
    x = 28,214,793,766.84/261,460.74
  6. Step 6: Final answer
    x = 107,912.16

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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.