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Finding the Fourth Proportional to 151,279.39, 208,763.79 and 83,294.92

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Solution

The fourth proportional to 151,279.39, 208,763.79 and 83,294.92 is: 114,946.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,279.39 : 208,763.79 = 83,294.92 : x
  2. Step 2: Convert to fraction form
    151,279.39/208,763.79 = 83,294.92/x
  3. Step 3: Cross multiply
    151,279.39x = 208,763.79 × 83,294.92
  4. Step 4: Simplify right side
    151,279.39x = 17,388,963,186.95
  5. Step 5: Solve for x
    x = 17,388,963,186.95/151,279.39
  6. Step 6: Final answer
    x = 114,946.02

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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.