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Finding the Fourth Proportional to 272,891.70, 409,337.55 and 193,175.55

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Solution

The fourth proportional to 272,891.70, 409,337.55 and 193,175.55 is: 289,763.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,891.70 : 409,337.55 = 193,175.55 : x
  2. Step 2: Convert to fraction form
    272,891.70/409,337.55 = 193,175.55/x
  3. Step 3: Cross multiply
    272,891.70x = 409,337.55 × 193,175.55
  4. Step 4: Simplify right side
    272,891.70x = 79,074,006,356.90
  5. Step 5: Solve for x
    x = 79,074,006,356.90/272,891.70
  6. Step 6: Final answer
    x = 289,763.33

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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.