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Finding the Fourth Proportional to 475,125.66, 655,148.03 and 302,770.62

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Solution

The fourth proportional to 475,125.66, 655,148.03 and 302,770.62 is: 417,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,125.66 : 655,148.03 = 302,770.62 : x
  2. Step 2: Convert to fraction form
    475,125.66/655,148.03 = 302,770.62/x
  3. Step 3: Cross multiply
    475,125.66x = 655,148.03 × 302,770.62
  4. Step 4: Simplify right side
    475,125.66x = 198,359,573,721.03
  5. Step 5: Solve for x
    x = 198,359,573,721.03/475,125.66
  6. Step 6: Final answer
    x = 417,488.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.