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Finding the Fourth Proportional to 353,226, 487,451.92 and 202,332.72

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Solution

The fourth proportional to 353,226, 487,451.92 and 202,332.72 is: 279,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,226 : 487,451.92 = 202,332.72 : x
  2. Step 2: Convert to fraction form
    353,226/487,451.92 = 202,332.72/x
  3. Step 3: Cross multiply
    353,226x = 487,451.92 × 202,332.72
  4. Step 4: Simplify right side
    353,226x = 98,627,472,842.82
  5. Step 5: Solve for x
    x = 98,627,472,842.82/353,226
  6. Step 6: Final answer
    x = 279,219.18

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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.