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Finding the Fourth Proportional to 442,208.80, 663,313.20 and 363,476.80

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Solution

The fourth proportional to 442,208.80, 663,313.20 and 363,476.80 is: 545,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,208.80 : 663,313.20 = 363,476.80 : x
  2. Step 2: Convert to fraction form
    442,208.80/663,313.20 = 363,476.80/x
  3. Step 3: Cross multiply
    442,208.80x = 663,313.20 × 363,476.80
  4. Step 4: Simplify right side
    442,208.80x = 241,098,959,333.76
  5. Step 5: Solve for x
    x = 241,098,959,333.76/442,208.80
  6. Step 6: Final answer
    x = 545,215.20

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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.