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Finding the Fourth Proportional to 330,329.70, 495,326.88 and 140,716.80

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Solution

The fourth proportional to 330,329.70, 495,326.88 and 140,716.80 is: 211,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,329.70 : 495,326.88 = 140,716.80 : x
  2. Step 2: Convert to fraction form
    330,329.70/495,326.88 = 140,716.80/x
  3. Step 3: Cross multiply
    330,329.70x = 495,326.88 × 140,716.80
  4. Step 4: Simplify right side
    330,329.70x = 69,700,813,507.58
  5. Step 5: Solve for x
    x = 69,700,813,507.58/330,329.70
  6. Step 6: Final answer
    x = 211,003.77

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1.5x scale

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.