Home / 286,082.12-394,780.02-158,756.60

Finding the Fourth Proportional to 286,082.12, 394,780.02 and 158,756.60

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Solution

The fourth proportional to 286,082.12, 394,780.02 and 158,756.60 is: 219,076.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,082.12 : 394,780.02 = 158,756.60 : x
  2. Step 2: Convert to fraction form
    286,082.12/394,780.02 = 158,756.60/x
  3. Step 3: Cross multiply
    286,082.12x = 394,780.02 × 158,756.60
  4. Step 4: Simplify right side
    286,082.12x = 62,673,933,723.13
  5. Step 5: Solve for x
    x = 62,673,933,723.13/286,082.12
  6. Step 6: Final answer
    x = 219,076.72

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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.