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Finding the Fourth Proportional to 220,502.19, 330,816.10 and 108,216.15

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Solution

The fourth proportional to 220,502.19, 330,816.10 and 108,216.15 is: 162,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,502.19 : 330,816.10 = 108,216.15 : x
  2. Step 2: Convert to fraction form
    220,502.19/330,816.10 = 108,216.15/x
  3. Step 3: Cross multiply
    220,502.19x = 330,816.10 × 108,216.15
  4. Step 4: Simplify right side
    220,502.19x = 35,799,644,700.02
  5. Step 5: Solve for x
    x = 35,799,644,700.02/220,502.19
  6. Step 6: Final answer
    x = 162,355.05

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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.