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Finding the Fourth Proportional to 202,358.38, 279,253 and 111,714.46

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Solution

The fourth proportional to 202,358.38, 279,253 and 111,714.46 is: 154,165.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,358.38 : 279,253 = 111,714.46 : x
  2. Step 2: Convert to fraction form
    202,358.38/279,253 = 111,714.46/x
  3. Step 3: Cross multiply
    202,358.38x = 279,253 × 111,714.46
  4. Step 4: Simplify right side
    202,358.38x = 31,196,598,098.38
  5. Step 5: Solve for x
    x = 31,196,598,098.38/202,358.38
  6. Step 6: Final answer
    x = 154,165.09

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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.