Home / 251,862.41-347,569.58-137,139.28

Finding the Fourth Proportional to 251,862.41, 347,569.58 and 137,139.28

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Solution

The fourth proportional to 251,862.41, 347,569.58 and 137,139.28 is: 189,251.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,862.41 : 347,569.58 = 137,139.28 : x
  2. Step 2: Convert to fraction form
    251,862.41/347,569.58 = 137,139.28/x
  3. Step 3: Cross multiply
    251,862.41x = 347,569.58 × 137,139.28
  4. Step 4: Simplify right side
    251,862.41x = 47,665,441,425.03
  5. Step 5: Solve for x
    x = 47,665,441,425.03/251,862.41
  6. Step 6: Final answer
    x = 189,251.91

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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.