Home / 391,328.02-587,065.82-148,241.86

Finding the Fourth Proportional to 391,328.02, 587,065.82 and 148,241.86

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Solution

The fourth proportional to 391,328.02, 587,065.82 and 148,241.86 is: 222,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,328.02 : 587,065.82 = 148,241.86 : x
  2. Step 2: Convert to fraction form
    391,328.02/587,065.82 = 148,241.86/x
  3. Step 3: Cross multiply
    391,328.02x = 587,065.82 × 148,241.86
  4. Step 4: Simplify right side
    391,328.02x = 87,027,729,099.23
  5. Step 5: Solve for x
    x = 87,027,729,099.23/391,328.02
  6. Step 6: Final answer
    x = 222,390.74

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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.