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Finding the Fourth Proportional to 220,119.40, 330,179.10 and 218,045.80

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Solution

The fourth proportional to 220,119.40, 330,179.10 and 218,045.80 is: 327,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,119.40 : 330,179.10 = 218,045.80 : x
  2. Step 2: Convert to fraction form
    220,119.40/330,179.10 = 218,045.80/x
  3. Step 3: Cross multiply
    220,119.40x = 330,179.10 × 218,045.80
  4. Step 4: Simplify right side
    220,119.40x = 71,994,166,002.78
  5. Step 5: Solve for x
    x = 71,994,166,002.78/220,119.40
  6. Step 6: Final answer
    x = 327,068.70

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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.