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Finding the Fourth Proportional to 381,259.89, 526,152.65 and 230,327.73

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Solution

The fourth proportional to 381,259.89, 526,152.65 and 230,327.73 is: 317,860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,259.89 : 526,152.65 = 230,327.73 : x
  2. Step 2: Convert to fraction form
    381,259.89/526,152.65 = 230,327.73/x
  3. Step 3: Cross multiply
    381,259.89x = 526,152.65 × 230,327.73
  4. Step 4: Simplify right side
    381,259.89x = 121,187,544,356.35
  5. Step 5: Solve for x
    x = 121,187,544,356.35/381,259.89
  6. Step 6: Final answer
    x = 317,860.72

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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.