Home / 515,964.64-773,951.28-142,008.16

Finding the Fourth Proportional to 515,964.64, 773,951.28 and 142,008.16

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Solution

The fourth proportional to 515,964.64, 773,951.28 and 142,008.16 is: 213,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,964.64 : 773,951.28 = 142,008.16 : x
  2. Step 2: Convert to fraction form
    515,964.64/773,951.28 = 142,008.16/x
  3. Step 3: Cross multiply
    515,964.64x = 773,951.28 × 142,008.16
  4. Step 4: Simplify right side
    515,964.64x = 109,907,397,202.45
  5. Step 5: Solve for x
    x = 109,907,397,202.45/515,964.64
  6. Step 6: Final answer
    x = 213,013.43

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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.