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Finding the Fourth Proportional to 201,592.78, 278,082.32 and 126,010.06

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Solution

The fourth proportional to 201,592.78, 278,082.32 and 126,010.06 is: 173,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,592.78 : 278,082.32 = 126,010.06 : x
  2. Step 2: Convert to fraction form
    201,592.78/278,082.32 = 126,010.06/x
  3. Step 3: Cross multiply
    201,592.78x = 278,082.32 × 126,010.06
  4. Step 4: Simplify right side
    201,592.78x = 35,041,168,502.88
  5. Step 5: Solve for x
    x = 35,041,168,502.88/201,592.78
  6. Step 6: Final answer
    x = 173,821.55

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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.