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Finding the Fourth Proportional to 269,387.68, 371,836.56 and 156,238.24

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Solution

The fourth proportional to 269,387.68, 371,836.56 and 156,238.24 is: 215,656.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,387.68 : 371,836.56 = 156,238.24 : x
  2. Step 2: Convert to fraction form
    269,387.68/371,836.56 = 156,238.24/x
  3. Step 3: Cross multiply
    269,387.68x = 371,836.56 × 156,238.24
  4. Step 4: Simplify right side
    269,387.68x = 58,095,089,702.05
  5. Step 5: Solve for x
    x = 58,095,089,702.05/269,387.68
  6. Step 6: Final answer
    x = 215,656.07

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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.