Home / 347,627.20-521,635.20-147,913.60

Finding the Fourth Proportional to 347,627.20, 521,635.20 and 147,913.60

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Solution

The fourth proportional to 347,627.20, 521,635.20 and 147,913.60 is: 221,953.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,627.20 : 521,635.20 = 147,913.60 : x
  2. Step 2: Convert to fraction form
    347,627.20/521,635.20 = 147,913.60/x
  3. Step 3: Cross multiply
    347,627.20x = 521,635.20 × 147,913.60
  4. Step 4: Simplify right side
    347,627.20x = 77,156,940,318.72
  5. Step 5: Solve for x
    x = 77,156,940,318.72/347,627.20
  6. Step 6: Final answer
    x = 221,953.12

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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.