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Finding the Fourth Proportional to 220,877.12, 330,661.16 and 136,365.56

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Solution

The fourth proportional to 220,877.12, 330,661.16 and 136,365.56 is: 204,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,877.12 : 330,661.16 = 136,365.56 : x
  2. Step 2: Convert to fraction form
    220,877.12/330,661.16 = 136,365.56/x
  3. Step 3: Cross multiply
    220,877.12x = 330,661.16 × 136,365.56
  4. Step 4: Simplify right side
    220,877.12x = 45,090,794,253.65
  5. Step 5: Solve for x
    x = 45,090,794,253.65/220,877.12
  6. Step 6: Final answer
    x = 204,144.25

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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.