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Finding the Fourth Proportional to 658,471.97, 987,708.36 and 185,157.34

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Solution

The fourth proportional to 658,471.97, 987,708.36 and 185,157.34 is: 277,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,471.97 : 987,708.36 = 185,157.34 : x
  2. Step 2: Convert to fraction form
    658,471.97/987,708.36 = 185,157.34/x
  3. Step 3: Cross multiply
    658,471.97x = 987,708.36 × 185,157.34
  4. Step 4: Simplify right side
    658,471.97x = 182,881,447,694.82
  5. Step 5: Solve for x
    x = 182,881,447,694.82/658,471.97
  6. Step 6: Final answer
    x = 277,736.12

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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.