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Finding the Fourth Proportional to 615,918.80, 924,007.80 and 195,237.20

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Solution

The fourth proportional to 615,918.80, 924,007.80 and 195,237.20 is: 292,896.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,918.80 : 924,007.80 = 195,237.20 : x
  2. Step 2: Convert to fraction form
    615,918.80/924,007.80 = 195,237.20/x
  3. Step 3: Cross multiply
    615,918.80x = 924,007.80 × 195,237.20
  4. Step 4: Simplify right side
    615,918.80x = 180,400,695,650.16
  5. Step 5: Solve for x
    x = 180,400,695,650.16/615,918.80
  6. Step 6: Final answer
    x = 292,896.88

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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.