Home / 391,329.52-587,068.07-148,243.36

Finding the Fourth Proportional to 391,329.52, 587,068.07 and 148,243.36

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Solution

The fourth proportional to 391,329.52, 587,068.07 and 148,243.36 is: 222,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,329.52 : 587,068.07 = 148,243.36 : x
  2. Step 2: Convert to fraction form
    391,329.52/587,068.07 = 148,243.36/x
  3. Step 3: Cross multiply
    391,329.52x = 587,068.07 × 148,243.36
  4. Step 4: Simplify right side
    391,329.52x = 87,028,943,245.52
  5. Step 5: Solve for x
    x = 87,028,943,245.52/391,329.52
  6. Step 6: Final answer
    x = 222,392.99

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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.