Home / 285,799.49-394,423.13-158,486.93

Finding the Fourth Proportional to 285,799.49, 394,423.13 and 158,486.93

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Solution

The fourth proportional to 285,799.49, 394,423.13 and 158,486.93 is: 218,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,799.49 : 394,423.13 = 158,486.93 : x
  2. Step 2: Convert to fraction form
    285,799.49/394,423.13 = 158,486.93/x
  3. Step 3: Cross multiply
    285,799.49x = 394,423.13 × 158,486.93
  4. Step 4: Simplify right side
    285,799.49x = 62,510,910,994.69
  5. Step 5: Solve for x
    x = 62,510,910,994.69/285,799.49
  6. Step 6: Final answer
    x = 218,722.96

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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.