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Finding the Fourth Proportional to 472,080, 651,476.88 and 270,876

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Solution

The fourth proportional to 472,080, 651,476.88 and 270,876 is: 373,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,080 : 651,476.88 = 270,876 : x
  2. Step 2: Convert to fraction form
    472,080/651,476.88 = 270,876/x
  3. Step 3: Cross multiply
    472,080x = 651,476.88 × 270,876
  4. Step 4: Simplify right side
    472,080x = 176,469,451,346.88
  5. Step 5: Solve for x
    x = 176,469,451,346.88/472,080
  6. Step 6: Final answer
    x = 373,812.60

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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.