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Finding the Fourth Proportional to 269,389.80, 371,760.84 and 148,531.32

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Solution

The fourth proportional to 269,389.80, 371,760.84 and 148,531.32 is: 204,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,389.80 : 371,760.84 = 148,531.32 : x
  2. Step 2: Convert to fraction form
    269,389.80/371,760.84 = 148,531.32/x
  3. Step 3: Cross multiply
    269,389.80x = 371,760.84 × 148,531.32
  4. Step 4: Simplify right side
    269,389.80x = 55,218,128,289.51
  5. Step 5: Solve for x
    x = 55,218,128,289.51/269,389.80
  6. Step 6: Final answer
    x = 204,974.83

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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.