Home / 251,964.78-347,706.16-137,244.70

Finding the Fourth Proportional to 251,964.78, 347,706.16 and 137,244.70

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Solution

The fourth proportional to 251,964.78, 347,706.16 and 137,244.70 is: 189,394.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,964.78 : 347,706.16 = 137,244.70 : x
  2. Step 2: Convert to fraction form
    251,964.78/347,706.16 = 137,244.70/x
  3. Step 3: Cross multiply
    251,964.78x = 347,706.16 × 137,244.70
  4. Step 4: Simplify right side
    251,964.78x = 47,720,827,617.35
  5. Step 5: Solve for x
    x = 47,720,827,617.35/251,964.78
  6. Step 6: Final answer
    x = 189,394.83

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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.