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Finding the Fourth Proportional to 269,287.93, 371,595.49 and 156,117.97

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Solution

The fourth proportional to 269,287.93, 371,595.49 and 156,117.97 is: 215,430.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,287.93 : 371,595.49 = 156,117.97 : x
  2. Step 2: Convert to fraction form
    269,287.93/371,595.49 = 156,117.97/x
  3. Step 3: Cross multiply
    269,287.93x = 371,595.49 × 156,117.97
  4. Step 4: Simplify right side
    269,287.93x = 58,012,733,559.96
  5. Step 5: Solve for x
    x = 58,012,733,559.96/269,287.93
  6. Step 6: Final answer
    x = 215,430.13

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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.