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Finding the Fourth Proportional to 481,149.92, 663,982 and 266,290.40

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Solution

The fourth proportional to 481,149.92, 663,982 and 266,290.40 is: 367,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,149.92 : 663,982 = 266,290.40 : x
  2. Step 2: Convert to fraction form
    481,149.92/663,982 = 266,290.40/x
  3. Step 3: Cross multiply
    481,149.92x = 663,982 × 266,290.40
  4. Step 4: Simplify right side
    481,149.92x = 176,812,032,372.80
  5. Step 5: Solve for x
    x = 176,812,032,372.80/481,149.92
  6. Step 6: Final answer
    x = 367,478.05

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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.