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Finding the Fourth Proportional to 347,125.20, 520,882.20 and 147,411.60

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Solution

The fourth proportional to 347,125.20, 520,882.20 and 147,411.60 is: 221,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,125.20 : 520,882.20 = 147,411.60 : x
  2. Step 2: Convert to fraction form
    347,125.20/520,882.20 = 147,411.60/x
  3. Step 3: Cross multiply
    347,125.20x = 520,882.20 × 147,411.60
  4. Step 4: Simplify right side
    347,125.20x = 76,784,078,513.52
  5. Step 5: Solve for x
    x = 76,784,078,513.52/347,125.20
  6. Step 6: Final answer
    x = 221,199.95

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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.