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Finding the Fourth Proportional to 426,130.92, 639,481.50 and 176,812.92

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Solution

The fourth proportional to 426,130.92, 639,481.50 and 176,812.92 is: 265,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,130.92 : 639,481.50 = 176,812.92 : x
  2. Step 2: Convert to fraction form
    426,130.92/639,481.50 = 176,812.92/x
  3. Step 3: Cross multiply
    426,130.92x = 639,481.50 × 176,812.92
  4. Step 4: Simplify right side
    426,130.92x = 113,068,591,300.98
  5. Step 5: Solve for x
    x = 113,068,591,300.98/426,130.92
  6. Step 6: Final answer
    x = 265,337.68

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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.