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Finding the Fourth Proportional to 202,379.52, 279,273.60 and 112,938.24

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Solution

The fourth proportional to 202,379.52, 279,273.60 and 112,938.24 is: 155,849.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,379.52 : 279,273.60 = 112,938.24 : x
  2. Step 2: Convert to fraction form
    202,379.52/279,273.60 = 112,938.24/x
  3. Step 3: Cross multiply
    202,379.52x = 279,273.60 × 112,938.24
  4. Step 4: Simplify right side
    202,379.52x = 31,540,668,862.46
  5. Step 5: Solve for x
    x = 31,540,668,862.46/202,379.52
  6. Step 6: Final answer
    x = 155,849.11

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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.