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Finding the Fourth Proportional to 250,255.40, 345,350.73 and 135,531.40

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Solution

The fourth proportional to 250,255.40, 345,350.73 and 135,531.40 is: 187,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,255.40 : 345,350.73 = 135,531.40 : x
  2. Step 2: Convert to fraction form
    250,255.40/345,350.73 = 135,531.40/x
  3. Step 3: Cross multiply
    250,255.40x = 345,350.73 × 135,531.40
  4. Step 4: Simplify right side
    250,255.40x = 46,805,867,250.27
  5. Step 5: Solve for x
    x = 46,805,867,250.27/250,255.40
  6. Step 6: Final answer
    x = 187,032.40

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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.