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Finding the Fourth Proportional to 330,278.76, 455,784.30 and 179,374.68

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Solution

The fourth proportional to 330,278.76, 455,784.30 and 179,374.68 is: 247,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,278.76 : 455,784.30 = 179,374.68 : x
  2. Step 2: Convert to fraction form
    330,278.76/455,784.30 = 179,374.68/x
  3. Step 3: Cross multiply
    330,278.76x = 455,784.30 × 179,374.68
  4. Step 4: Simplify right side
    330,278.76x = 81,756,162,961.52
  5. Step 5: Solve for x
    x = 81,756,162,961.52/330,278.76
  6. Step 6: Final answer
    x = 247,536.85

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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.