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Finding the Fourth Proportional to 250,681.67, 345,939.71 and 135,959.85

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Solution

The fourth proportional to 250,681.67, 345,939.71 and 135,959.85 is: 187,624.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,681.67 : 345,939.71 = 135,959.85 : x
  2. Step 2: Convert to fraction form
    250,681.67/345,939.71 = 135,959.85/x
  3. Step 3: Cross multiply
    250,681.67x = 345,939.71 × 135,959.85
  4. Step 4: Simplify right side
    250,681.67x = 47,033,911,080.64
  5. Step 5: Solve for x
    x = 47,033,911,080.64/250,681.67
  6. Step 6: Final answer
    x = 187,624.05

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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.