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Finding the Fourth Proportional to 615,422.39, 923,207.29 and 188,902.35

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Solution

The fourth proportional to 615,422.39, 923,207.29 and 188,902.35 is: 283,376.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,422.39 : 923,207.29 = 188,902.35 : x
  2. Step 2: Convert to fraction form
    615,422.39/923,207.29 = 188,902.35/x
  3. Step 3: Cross multiply
    615,422.39x = 923,207.29 × 188,902.35
  4. Step 4: Simplify right side
    615,422.39x = 174,396,026,145.88
  5. Step 5: Solve for x
    x = 174,396,026,145.88/615,422.39
  6. Step 6: Final answer
    x = 283,376.15

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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.