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Finding the Fourth Proportional to 508,765.80, 763,148.70 and 176,375.40

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Solution

The fourth proportional to 508,765.80, 763,148.70 and 176,375.40 is: 264,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,765.80 : 763,148.70 = 176,375.40 : x
  2. Step 2: Convert to fraction form
    508,765.80/763,148.70 = 176,375.40/x
  3. Step 3: Cross multiply
    508,765.80x = 763,148.70 × 176,375.40
  4. Step 4: Simplify right side
    508,765.80x = 134,600,657,221.98
  5. Step 5: Solve for x
    x = 134,600,657,221.98/508,765.80
  6. Step 6: Final answer
    x = 264,563.10

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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.