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Finding the Fourth Proportional to 150,555.80, 207,767.00 and 83,487.80

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Solution

The fourth proportional to 150,555.80, 207,767.00 and 83,487.80 is: 115,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,555.80 : 207,767.00 = 83,487.80 : x
  2. Step 2: Convert to fraction form
    150,555.80/207,767.00 = 83,487.80/x
  3. Step 3: Cross multiply
    150,555.80x = 207,767.00 × 83,487.80
  4. Step 4: Simplify right side
    150,555.80x = 17,346,010,470.74
  5. Step 5: Solve for x
    x = 17,346,010,470.74/150,555.80
  6. Step 6: Final answer
    x = 115,213.16

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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.