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Finding the Fourth Proportional to 300,672.90, 450,359.64 and 283,006.80

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Solution

The fourth proportional to 300,672.90, 450,359.64 and 283,006.80 is: 423,898.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,672.90 : 450,359.64 = 283,006.80 : x
  2. Step 2: Convert to fraction form
    300,672.90/450,359.64 = 283,006.80/x
  3. Step 3: Cross multiply
    300,672.90x = 450,359.64 × 283,006.80
  4. Step 4: Simplify right side
    300,672.90x = 127,454,840,565.55
  5. Step 5: Solve for x
    x = 127,454,840,565.55/300,672.90
  6. Step 6: Final answer
    x = 423,898.66

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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.