Home / 218,027.12-300,824.88-127,331.60

Finding the Fourth Proportional to 218,027.12, 300,824.88 and 127,331.60

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Solution

The fourth proportional to 218,027.12, 300,824.88 and 127,331.60 is: 175,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,027.12 : 300,824.88 = 127,331.60 : x
  2. Step 2: Convert to fraction form
    218,027.12/300,824.88 = 127,331.60/x
  3. Step 3: Cross multiply
    218,027.12x = 300,824.88 × 127,331.60
  4. Step 4: Simplify right side
    218,027.12x = 38,304,513,290.21
  5. Step 5: Solve for x
    x = 38,304,513,290.21/218,027.12
  6. Step 6: Final answer
    x = 175,686.92

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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.