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Finding the Fourth Proportional to 169,658.30, 254,487.45 and 155,143.10

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Solution

The fourth proportional to 169,658.30, 254,487.45 and 155,143.10 is: 232,714.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,658.30 : 254,487.45 = 155,143.10 : x
  2. Step 2: Convert to fraction form
    169,658.30/254,487.45 = 155,143.10/x
  3. Step 3: Cross multiply
    169,658.30x = 254,487.45 × 155,143.10
  4. Step 4: Simplify right side
    169,658.30x = 39,481,971,904.10
  5. Step 5: Solve for x
    x = 39,481,971,904.10/169,658.30
  6. Step 6: Final answer
    x = 232,714.65

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1.5x scale

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.