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Finding the Fourth Proportional to 250,690, 345,952.22 and 137,513.04

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Solution

The fourth proportional to 250,690, 345,952.22 and 137,513.04 is: 189,768.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,690 : 345,952.22 = 137,513.04 : x
  2. Step 2: Convert to fraction form
    250,690/345,952.22 = 137,513.04/x
  3. Step 3: Cross multiply
    250,690x = 345,952.22 × 137,513.04
  4. Step 4: Simplify right side
    250,690x = 47,572,941,466.95
  5. Step 5: Solve for x
    x = 47,572,941,466.95/250,690
  6. Step 6: Final answer
    x = 189,768.01

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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.