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Finding the Fourth Proportional to 330,310, 495,489.71 and 93,671.74

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Solution

The fourth proportional to 330,310, 495,489.71 and 93,671.74 is: 140,514.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,310 : 495,489.71 = 93,671.74 : x
  2. Step 2: Convert to fraction form
    330,310/495,489.71 = 93,671.74/x
  3. Step 3: Cross multiply
    330,310x = 495,489.71 × 93,671.74
  4. Step 4: Simplify right side
    330,310x = 46,413,383,287.80
  5. Step 5: Solve for x
    x = 46,413,383,287.80/330,310
  6. Step 6: Final answer
    x = 140,514.62

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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.