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Finding the Fourth Proportional to 251,585.52, 347,194.56 and 136,871.28

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Solution

The fourth proportional to 251,585.52, 347,194.56 and 136,871.28 is: 188,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,585.52 : 347,194.56 = 136,871.28 : x
  2. Step 2: Convert to fraction form
    251,585.52/347,194.56 = 136,871.28/x
  3. Step 3: Cross multiply
    251,585.52x = 347,194.56 × 136,871.28
  4. Step 4: Simplify right side
    251,585.52x = 47,520,963,836.24
  5. Step 5: Solve for x
    x = 47,520,963,836.24/251,585.52
  6. Step 6: Final answer
    x = 188,885.93

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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.