Home / 221,909.16-306,159.84-126,348.24

Finding the Fourth Proportional to 221,909.16, 306,159.84 and 126,348.24

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Solution

The fourth proportional to 221,909.16, 306,159.84 and 126,348.24 is: 174,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,909.16 : 306,159.84 = 126,348.24 : x
  2. Step 2: Convert to fraction form
    221,909.16/306,159.84 = 126,348.24/x
  3. Step 3: Cross multiply
    221,909.16x = 306,159.84 × 126,348.24
  4. Step 4: Simplify right side
    221,909.16x = 38,682,756,942.68
  5. Step 5: Solve for x
    x = 38,682,756,942.68/221,909.16
  6. Step 6: Final answer
    x = 174,317.98

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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.