Home / 391,795.30-587,887.35-155,145.70

Finding the Fourth Proportional to 391,795.30, 587,887.35 and 155,145.70

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Solution

The fourth proportional to 391,795.30, 587,887.35 and 155,145.70 is: 232,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,795.30 : 587,887.35 = 155,145.70 : x
  2. Step 2: Convert to fraction form
    391,795.30/587,887.35 = 155,145.70/x
  3. Step 3: Cross multiply
    391,795.30x = 587,887.35 × 155,145.70
  4. Step 4: Simplify right side
    391,795.30x = 91,208,194,436.90
  5. Step 5: Solve for x
    x = 91,208,194,436.90/391,795.30
  6. Step 6: Final answer
    x = 232,795.53

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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.