Home / 285,306.20-394,132.68-227,870.12

Finding the Fourth Proportional to 285,306.20, 394,132.68 and 227,870.12

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Solution

The fourth proportional to 285,306.20, 394,132.68 and 227,870.12 is: 314,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,306.20 : 394,132.68 = 227,870.12 : x
  2. Step 2: Convert to fraction form
    285,306.20/394,132.68 = 227,870.12/x
  3. Step 3: Cross multiply
    285,306.20x = 394,132.68 × 227,870.12
  4. Step 4: Simplify right side
    285,306.20x = 89,811,057,977.51
  5. Step 5: Solve for x
    x = 89,811,057,977.51/285,306.20
  6. Step 6: Final answer
    x = 314,788.32

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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.