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Finding the Fourth Proportional to 615,422.32, 923,207.18 and 188,902.28

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Solution

The fourth proportional to 615,422.32, 923,207.18 and 188,902.28 is: 283,376.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,422.32 : 923,207.18 = 188,902.28 : x
  2. Step 2: Convert to fraction form
    615,422.32/923,207.18 = 188,902.28/x
  3. Step 3: Cross multiply
    615,422.32x = 923,207.18 × 188,902.28
  4. Step 4: Simplify right side
    615,422.32x = 174,395,941,214.37
  5. Step 5: Solve for x
    x = 174,395,941,214.37/615,422.32
  6. Step 6: Final answer
    x = 283,376.04

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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.