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Finding the Fourth Proportional to 218,612.79, 327,919.19 and 60,853.55

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Solution

The fourth proportional to 218,612.79, 327,919.19 and 60,853.55 is: 91,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,612.79 : 327,919.19 = 60,853.55 : x
  2. Step 2: Convert to fraction form
    218,612.79/327,919.19 = 60,853.55/x
  3. Step 3: Cross multiply
    218,612.79x = 327,919.19 × 60,853.55
  4. Step 4: Simplify right side
    218,612.79x = 19,955,044,880.76
  5. Step 5: Solve for x
    x = 19,955,044,880.76/218,612.79
  6. Step 6: Final answer
    x = 91,280.32

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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.