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Finding the Fourth Proportional to 251,463.66, 347,009.28 and 142,575.32

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Solution

The fourth proportional to 251,463.66, 347,009.28 and 142,575.32 is: 196,747.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,463.66 : 347,009.28 = 142,575.32 : x
  2. Step 2: Convert to fraction form
    251,463.66/347,009.28 = 142,575.32/x
  3. Step 3: Cross multiply
    251,463.66x = 347,009.28 × 142,575.32
  4. Step 4: Simplify right side
    251,463.66x = 49,474,959,138.97
  5. Step 5: Solve for x
    x = 49,474,959,138.97/251,463.66
  6. Step 6: Final answer
    x = 196,747.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.