Home / 285,799.74-394,423.47-158,487.18

Finding the Fourth Proportional to 285,799.74, 394,423.47 and 158,487.18

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Solution

The fourth proportional to 285,799.74, 394,423.47 and 158,487.18 is: 218,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,799.74 : 394,423.47 = 158,487.18 : x
  2. Step 2: Convert to fraction form
    285,799.74/394,423.47 = 158,487.18/x
  3. Step 3: Cross multiply
    285,799.74x = 394,423.47 × 158,487.18
  4. Step 4: Simplify right side
    285,799.74x = 62,511,063,486.11
  5. Step 5: Solve for x
    x = 62,511,063,486.11/285,799.74
  6. Step 6: Final answer
    x = 218,723.30

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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.