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Finding the Fourth Proportional to 614,388.03, 921,996.96 and 215,032.11

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Solution

The fourth proportional to 614,388.03, 921,996.96 and 215,032.11 is: 322,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,388.03 : 921,996.96 = 215,032.11 : x
  2. Step 2: Convert to fraction form
    614,388.03/921,996.96 = 215,032.11/x
  3. Step 3: Cross multiply
    614,388.03x = 921,996.96 × 215,032.11
  4. Step 4: Simplify right side
    614,388.03x = 198,258,951,722.39
  5. Step 5: Solve for x
    x = 198,258,951,722.39/614,388.03
  6. Step 6: Final answer
    x = 322,693.38

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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.