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Finding the Fourth Proportional to 218,259.20, 327,388.80 and 124,774.40

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Solution

The fourth proportional to 218,259.20, 327,388.80 and 124,774.40 is: 187,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,259.20 : 327,388.80 = 124,774.40 : x
  2. Step 2: Convert to fraction form
    218,259.20/327,388.80 = 124,774.40/x
  3. Step 3: Cross multiply
    218,259.20x = 327,388.80 × 124,774.40
  4. Step 4: Simplify right side
    218,259.20x = 40,849,741,086.72
  5. Step 5: Solve for x
    x = 40,849,741,086.72/218,259.20
  6. Step 6: Final answer
    x = 187,161.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.