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Finding the Fourth Proportional to 615,972.48, 923,991.60 and 195,281.28

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Solution

The fourth proportional to 615,972.48, 923,991.60 and 195,281.28 is: 292,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,972.48 : 923,991.60 = 195,281.28 : x
  2. Step 2: Convert to fraction form
    615,972.48/923,991.60 = 195,281.28/x
  3. Step 3: Cross multiply
    615,972.48x = 923,991.60 × 195,281.28
  4. Step 4: Simplify right side
    615,972.48x = 180,438,262,357.25
  5. Step 5: Solve for x
    x = 180,438,262,357.25/615,972.48
  6. Step 6: Final answer
    x = 292,932.34

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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.