Home / 285,426.20-393,900.66-158,101.80

Finding the Fourth Proportional to 285,426.20, 393,900.66 and 158,101.80

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Solution

The fourth proportional to 285,426.20, 393,900.66 and 158,101.80 is: 218,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,426.20 : 393,900.66 = 158,101.80 : x
  2. Step 2: Convert to fraction form
    285,426.20/393,900.66 = 158,101.80/x
  3. Step 3: Cross multiply
    285,426.20x = 393,900.66 × 158,101.80
  4. Step 4: Simplify right side
    285,426.20x = 62,276,403,367.19
  5. Step 5: Solve for x
    x = 62,276,403,367.19/285,426.20
  6. Step 6: Final answer
    x = 218,187.41

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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.