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Finding the Fourth Proportional to 220,424.51, 330,630.39 and 131,080.10

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Solution

The fourth proportional to 220,424.51, 330,630.39 and 131,080.10 is: 196,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,424.51 : 330,630.39 = 131,080.10 : x
  2. Step 2: Convert to fraction form
    220,424.51/330,630.39 = 131,080.10/x
  3. Step 3: Cross multiply
    220,424.51x = 330,630.39 × 131,080.10
  4. Step 4: Simplify right side
    220,424.51x = 43,339,062,931.09
  5. Step 5: Solve for x
    x = 43,339,062,931.09/220,424.51
  6. Step 6: Final answer
    x = 196,616.35

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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.