Home / 381,829.20-526,909.72-212,074.28

Finding the Fourth Proportional to 381,829.20, 526,909.72 and 212,074.28

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Solution

The fourth proportional to 381,829.20, 526,909.72 and 212,074.28 is: 292,654.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,829.20 : 526,909.72 = 212,074.28 : x
  2. Step 2: Convert to fraction form
    381,829.20/526,909.72 = 212,074.28/x
  3. Step 3: Cross multiply
    381,829.20x = 526,909.72 × 212,074.28
  4. Step 4: Simplify right side
    381,829.20x = 111,743,999,494.00
  5. Step 5: Solve for x
    x = 111,743,999,494.00/381,829.20
  6. Step 6: Final answer
    x = 292,654.41

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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.