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Finding the Fourth Proportional to 250,472.08, 345,655.65 and 135,754.39

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Solution

The fourth proportional to 250,472.08, 345,655.65 and 135,754.39 is: 187,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,472.08 : 345,655.65 = 135,754.39 : x
  2. Step 2: Convert to fraction form
    250,472.08/345,655.65 = 135,754.39/x
  3. Step 3: Cross multiply
    250,472.08x = 345,655.65 × 135,754.39
  4. Step 4: Simplify right side
    250,472.08x = 46,924,271,915.80
  5. Step 5: Solve for x
    x = 46,924,271,915.80/250,472.08
  6. Step 6: Final answer
    x = 187,343.32

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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.