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Finding the Fourth Proportional to 468,033.28, 645,680.76 and 274,342.80

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Solution

The fourth proportional to 468,033.28, 645,680.76 and 274,342.80 is: 378,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,033.28 : 645,680.76 = 274,342.80 : x
  2. Step 2: Convert to fraction form
    468,033.28/645,680.76 = 274,342.80/x
  3. Step 3: Cross multiply
    468,033.28x = 645,680.76 × 274,342.80
  4. Step 4: Simplify right side
    468,033.28x = 177,137,867,604.53
  5. Step 5: Solve for x
    x = 177,137,867,604.53/468,033.28
  6. Step 6: Final answer
    x = 378,472.80

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1.5x scale

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.