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Finding the Fourth Proportional to 353,198.73, 487,594.85 and 272,444.97

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Solution

The fourth proportional to 353,198.73, 487,594.85 and 272,444.97 is: 376,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,198.73 : 487,594.85 = 272,444.97 : x
  2. Step 2: Convert to fraction form
    353,198.73/487,594.85 = 272,444.97/x
  3. Step 3: Cross multiply
    353,198.73x = 487,594.85 × 272,444.97
  4. Step 4: Simplify right side
    353,198.73x = 132,842,762,918.18
  5. Step 5: Solve for x
    x = 132,842,762,918.18/353,198.73
  6. Step 6: Final answer
    x = 376,113.37

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1.5x scale

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.