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Finding the Fourth Proportional to 269,089, 371,342.92 and 155,977.36

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Solution

The fourth proportional to 269,089, 371,342.92 and 155,977.36 is: 215,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,089 : 371,342.92 = 155,977.36 : x
  2. Step 2: Convert to fraction form
    269,089/371,342.92 = 155,977.36/x
  3. Step 3: Cross multiply
    269,089x = 371,342.92 × 155,977.36
  4. Step 4: Simplify right side
    269,089x = 57,921,088,316.29
  5. Step 5: Solve for x
    x = 57,921,088,316.29/269,089
  6. Step 6: Final answer
    x = 215,248.81

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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.