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Finding the Fourth Proportional to 150,347.75, 207,480.30 and 83,279.75

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Solution

The fourth proportional to 150,347.75, 207,480.30 and 83,279.75 is: 114,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,347.75 : 207,480.30 = 83,279.75 : x
  2. Step 2: Convert to fraction form
    150,347.75/207,480.30 = 83,279.75/x
  3. Step 3: Cross multiply
    150,347.75x = 207,480.30 × 83,279.75
  4. Step 4: Simplify right side
    150,347.75x = 17,278,907,513.93
  5. Step 5: Solve for x
    x = 17,278,907,513.93/150,347.75
  6. Step 6: Final answer
    x = 114,926.28

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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.