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Finding the Fourth Proportional to 185,131.80, 255,482.82 and 100,249.20

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Solution

The fourth proportional to 185,131.80, 255,482.82 and 100,249.20 is: 138,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,131.80 : 255,482.82 = 100,249.20 : x
  2. Step 2: Convert to fraction form
    185,131.80/255,482.82 = 100,249.20/x
  3. Step 3: Cross multiply
    185,131.80x = 255,482.82 × 100,249.20
  4. Step 4: Simplify right side
    185,131.80x = 25,611,948,318.74
  5. Step 5: Solve for x
    x = 25,611,948,318.74/185,131.80
  6. Step 6: Final answer
    x = 138,344.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.