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Finding the Fourth Proportional to 363,007.20, 543,854.70 and 310,519.20

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Solution

The fourth proportional to 363,007.20, 543,854.70 and 310,519.20 is: 465,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,007.20 : 543,854.70 = 310,519.20 : x
  2. Step 2: Convert to fraction form
    363,007.20/543,854.70 = 310,519.20/x
  3. Step 3: Cross multiply
    363,007.20x = 543,854.70 × 310,519.20
  4. Step 4: Simplify right side
    363,007.20x = 168,877,326,360.24
  5. Step 5: Solve for x
    x = 168,877,326,360.24/363,007.20
  6. Step 6: Final answer
    x = 465,217.57

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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.