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Finding the Fourth Proportional to 151,279.89, 208,764.48 and 83,295.42

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Solution

The fourth proportional to 151,279.89, 208,764.48 and 83,295.42 is: 114,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,279.89 : 208,764.48 = 83,295.42 : x
  2. Step 2: Convert to fraction form
    151,279.89/208,764.48 = 83,295.42/x
  3. Step 3: Cross multiply
    151,279.89x = 208,764.48 × 83,295.42
  4. Step 4: Simplify right side
    151,279.89x = 17,389,125,042.68
  5. Step 5: Solve for x
    x = 17,389,125,042.68/151,279.89
  6. Step 6: Final answer
    x = 114,946.71

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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.