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Finding the Fourth Proportional to 269,685.93, 372,165 and 156,506.25

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Solution

The fourth proportional to 269,685.93, 372,165 and 156,506.25 is: 215,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,685.93 : 372,165 = 156,506.25 : x
  2. Step 2: Convert to fraction form
    269,685.93/372,165 = 156,506.25/x
  3. Step 3: Cross multiply
    269,685.93x = 372,165 × 156,506.25
  4. Step 4: Simplify right side
    269,685.93x = 58,246,148,531.25
  5. Step 5: Solve for x
    x = 58,246,148,531.25/269,685.93
  6. Step 6: Final answer
    x = 215,977.71

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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.