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Finding the Fourth Proportional to 353,202.48, 487,600.02 and 272,448.72

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Solution

The fourth proportional to 353,202.48, 487,600.02 and 272,448.72 is: 376,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,202.48 : 487,600.02 = 272,448.72 : x
  2. Step 2: Convert to fraction form
    353,202.48/487,600.02 = 272,448.72/x
  3. Step 3: Cross multiply
    353,202.48x = 487,600.02 × 272,448.72
  4. Step 4: Simplify right side
    353,202.48x = 132,846,001,320.97
  5. Step 5: Solve for x
    x = 132,846,001,320.97/353,202.48
  6. Step 6: Final answer
    x = 376,118.54

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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.