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Finding the Fourth Proportional to 205,309.30, 307,964.66 and 63,153.61

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Solution

The fourth proportional to 205,309.30, 307,964.66 and 63,153.61 is: 94,730.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,309.30 : 307,964.66 = 63,153.61 : x
  2. Step 2: Convert to fraction form
    205,309.30/307,964.66 = 63,153.61/x
  3. Step 3: Cross multiply
    205,309.30x = 307,964.66 × 63,153.61
  4. Step 4: Simplify right side
    205,309.30x = 19,449,080,031.42
  5. Step 5: Solve for x
    x = 19,449,080,031.42/205,309.30
  6. Step 6: Final answer
    x = 94,730.63

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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.