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Finding the Fourth Proportional to 218,011.80, 327,066.30 and 84,880.20

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Solution

The fourth proportional to 218,011.80, 327,066.30 and 84,880.20 is: 127,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,011.80 : 327,066.30 = 84,880.20 : x
  2. Step 2: Convert to fraction form
    218,011.80/327,066.30 = 84,880.20/x
  3. Step 3: Cross multiply
    218,011.80x = 327,066.30 × 84,880.20
  4. Step 4: Simplify right side
    218,011.80x = 27,761,452,957.26
  5. Step 5: Solve for x
    x = 27,761,452,957.26/218,011.80
  6. Step 6: Final answer
    x = 127,339.22

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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.