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Finding the Fourth Proportional to 479,132.74, 661,200.49 and 264,272.30

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Solution

The fourth proportional to 479,132.74, 661,200.49 and 264,272.30 is: 364,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,132.74 : 661,200.49 = 264,272.30 : x
  2. Step 2: Convert to fraction form
    479,132.74/661,200.49 = 264,272.30/x
  3. Step 3: Cross multiply
    479,132.74x = 661,200.49 × 264,272.30
  4. Step 4: Simplify right side
    479,132.74x = 174,736,972,640.91
  5. Step 5: Solve for x
    x = 174,736,972,640.91/479,132.74
  6. Step 6: Final answer
    x = 364,694.28

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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.