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Finding the Fourth Proportional to 171,373.32, 257,118.30 and 88,209

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Solution

The fourth proportional to 171,373.32, 257,118.30 and 88,209 is: 132,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,373.32 : 257,118.30 = 88,209 : x
  2. Step 2: Convert to fraction form
    171,373.32/257,118.30 = 88,209/x
  3. Step 3: Cross multiply
    171,373.32x = 257,118.30 × 88,209
  4. Step 4: Simplify right side
    171,373.32x = 22,680,148,124.70
  5. Step 5: Solve for x
    x = 22,680,148,124.70/171,373.32
  6. Step 6: Final answer
    x = 132,343.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.