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Finding the Fourth Proportional to 169,788.20, 254,682.30 and 155,013.80

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Solution

The fourth proportional to 169,788.20, 254,682.30 and 155,013.80 is: 232,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,788.20 : 254,682.30 = 155,013.80 : x
  2. Step 2: Convert to fraction form
    169,788.20/254,682.30 = 155,013.80/x
  3. Step 3: Cross multiply
    169,788.20x = 254,682.30 × 155,013.80
  4. Step 4: Simplify right side
    169,788.20x = 39,479,271,115.74
  5. Step 5: Solve for x
    x = 39,479,271,115.74/169,788.20
  6. Step 6: Final answer
    x = 232,520.70

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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.