Home / 261,598.76-392,631.42-121,436.36

Finding the Fourth Proportional to 261,598.76, 392,631.42 and 121,436.36

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Solution

The fourth proportional to 261,598.76, 392,631.42 and 121,436.36 is: 182,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,598.76 : 392,631.42 = 121,436.36 : x
  2. Step 2: Convert to fraction form
    261,598.76/392,631.42 = 121,436.36/x
  3. Step 3: Cross multiply
    261,598.76x = 392,631.42 × 121,436.36
  4. Step 4: Simplify right side
    261,598.76x = 47,679,730,466.43
  5. Step 5: Solve for x
    x = 47,679,730,466.43/261,598.76
  6. Step 6: Final answer
    x = 182,262.83

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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.