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Finding the Fourth Proportional to 322,403.60, 483,605.40 and 247,899.80

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Solution

The fourth proportional to 322,403.60, 483,605.40 and 247,899.80 is: 371,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,403.60 : 483,605.40 = 247,899.80 : x
  2. Step 2: Convert to fraction form
    322,403.60/483,605.40 = 247,899.80/x
  3. Step 3: Cross multiply
    322,403.60x = 483,605.40 × 247,899.80
  4. Step 4: Simplify right side
    322,403.60x = 119,885,681,938.92
  5. Step 5: Solve for x
    x = 119,885,681,938.92/322,403.60
  6. Step 6: Final answer
    x = 371,849.70

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Similar ratio
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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.