Home / 217,422.20-299,970.88-131,348.96

Finding the Fourth Proportional to 217,422.20, 299,970.88 and 131,348.96

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Solution

The fourth proportional to 217,422.20, 299,970.88 and 131,348.96 is: 181,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,422.20 : 299,970.88 = 131,348.96 : x
  2. Step 2: Convert to fraction form
    217,422.20/299,970.88 = 131,348.96/x
  3. Step 3: Cross multiply
    217,422.20x = 299,970.88 × 131,348.96
  4. Step 4: Simplify right side
    217,422.20x = 39,400,863,118.28
  5. Step 5: Solve for x
    x = 39,400,863,118.28/217,422.20
  6. Step 6: Final answer
    x = 181,218.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.