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Finding the Fourth Proportional to 250,031.68, 345,043.84 and 136,855.04

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Solution

The fourth proportional to 250,031.68, 345,043.84 and 136,855.04 is: 188,860.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,031.68 : 345,043.84 = 136,855.04 : x
  2. Step 2: Convert to fraction form
    250,031.68/345,043.84 = 136,855.04/x
  3. Step 3: Cross multiply
    250,031.68x = 345,043.84 × 136,855.04
  4. Step 4: Simplify right side
    250,031.68x = 47,220,988,524.95
  5. Step 5: Solve for x
    x = 47,220,988,524.95/250,031.68
  6. Step 6: Final answer
    x = 188,860.02

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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.