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Finding the Fourth Proportional to 330,032.58, 495,044.55 and 80,716.74

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Solution

The fourth proportional to 330,032.58, 495,044.55 and 80,716.74 is: 121,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,032.58 : 495,044.55 = 80,716.74 : x
  2. Step 2: Convert to fraction form
    330,032.58/495,044.55 = 80,716.74/x
  3. Step 3: Cross multiply
    330,032.58x = 495,044.55 × 80,716.74
  4. Step 4: Simplify right side
    330,032.58x = 39,958,382,230.77
  5. Step 5: Solve for x
    x = 39,958,382,230.77/330,032.58
  6. Step 6: Final answer
    x = 121,074.05

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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.