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Finding the Fourth Proportional to 450,135.80, 674,781.30 and 169,841.40

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Solution

The fourth proportional to 450,135.80, 674,781.30 and 169,841.40 is: 254,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,135.80 : 674,781.30 = 169,841.40 : x
  2. Step 2: Convert to fraction form
    450,135.80/674,781.30 = 169,841.40/x
  3. Step 3: Cross multiply
    450,135.80x = 674,781.30 × 169,841.40
  4. Step 4: Simplify right side
    450,135.80x = 114,605,800,685.82
  5. Step 5: Solve for x
    x = 114,605,800,685.82/450,135.80
  6. Step 6: Final answer
    x = 254,602.72

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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.