Home / 394,101.12-591,210-144,763.68

Finding the Fourth Proportional to 394,101.12, 591,210 and 144,763.68

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Solution

The fourth proportional to 394,101.12, 591,210 and 144,763.68 is: 217,166.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,101.12 : 591,210 = 144,763.68 : x
  2. Step 2: Convert to fraction form
    394,101.12/591,210 = 144,763.68/x
  3. Step 3: Cross multiply
    394,101.12x = 591,210 × 144,763.68
  4. Step 4: Simplify right side
    394,101.12x = 85,585,735,252.80
  5. Step 5: Solve for x
    x = 85,585,735,252.80/394,101.12
  6. Step 6: Final answer
    x = 217,166.94

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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.