Home / 372,212.90-558,319.35-355,105.70

Finding the Fourth Proportional to 372,212.90, 558,319.35 and 355,105.70

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Solution

The fourth proportional to 372,212.90, 558,319.35 and 355,105.70 is: 532,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,212.90 : 558,319.35 = 355,105.70 : x
  2. Step 2: Convert to fraction form
    372,212.90/558,319.35 = 355,105.70/x
  3. Step 3: Cross multiply
    372,212.90x = 558,319.35 × 355,105.70
  4. Step 4: Simplify right side
    372,212.90x = 198,262,383,605.30
  5. Step 5: Solve for x
    x = 198,262,383,605.30/372,212.90
  6. Step 6: Final answer
    x = 532,658.55

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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.