Home / 257,747.49-386,462.43-89,228.61

Finding the Fourth Proportional to 257,747.49, 386,462.43 and 89,228.61

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Solution

The fourth proportional to 257,747.49, 386,462.43 and 89,228.61 is: 133,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,747.49 : 386,462.43 = 89,228.61 : x
  2. Step 2: Convert to fraction form
    257,747.49/386,462.43 = 89,228.61/x
  3. Step 3: Cross multiply
    257,747.49x = 386,462.43 × 89,228.61
  4. Step 4: Simplify right side
    257,747.49x = 34,483,505,446.12
  5. Step 5: Solve for x
    x = 34,483,505,446.12/257,747.49
  6. Step 6: Final answer
    x = 133,787.94

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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.