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Finding the Fourth Proportional to 270,821.20, 373,728.68 and 149,959.89

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Solution

The fourth proportional to 270,821.20, 373,728.68 and 149,959.89 is: 206,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,821.20 : 373,728.68 = 149,959.89 : x
  2. Step 2: Convert to fraction form
    270,821.20/373,728.68 = 149,959.89/x
  3. Step 3: Cross multiply
    270,821.20x = 373,728.68 × 149,959.89
  4. Step 4: Simplify right side
    270,821.20x = 56,044,312,956.68
  5. Step 5: Solve for x
    x = 56,044,312,956.68/270,821.20
  6. Step 6: Final answer
    x = 206,942.12

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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.