Home / 261,966.40-392,949.60-156,731.20

Finding the Fourth Proportional to 261,966.40, 392,949.60 and 156,731.20

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Solution

The fourth proportional to 261,966.40, 392,949.60 and 156,731.20 is: 235,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,966.40 : 392,949.60 = 156,731.20 : x
  2. Step 2: Convert to fraction form
    261,966.40/392,949.60 = 156,731.20/x
  3. Step 3: Cross multiply
    261,966.40x = 392,949.60 × 156,731.20
  4. Step 4: Simplify right side
    261,966.40x = 61,587,462,347.52
  5. Step 5: Solve for x
    x = 61,587,462,347.52/261,966.40
  6. Step 6: Final answer
    x = 235,096.80

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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.