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Finding the Fourth Proportional to 169,678.20, 254,517.30 and 165,790.20

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Solution

The fourth proportional to 169,678.20, 254,517.30 and 165,790.20 is: 248,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,678.20 : 254,517.30 = 165,790.20 : x
  2. Step 2: Convert to fraction form
    169,678.20/254,517.30 = 165,790.20/x
  3. Step 3: Cross multiply
    169,678.20x = 254,517.30 × 165,790.20
  4. Step 4: Simplify right side
    169,678.20x = 42,196,474,070.46
  5. Step 5: Solve for x
    x = 42,196,474,070.46/169,678.20
  6. Step 6: Final answer
    x = 248,685.30

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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.