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Finding the Fourth Proportional to 387,364.73, 579,797.17 and 200,118.65

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Solution

The fourth proportional to 387,364.73, 579,797.17 and 200,118.65 is: 299,532.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,364.73 : 579,797.17 = 200,118.65 : x
  2. Step 2: Convert to fraction form
    387,364.73/579,797.17 = 200,118.65/x
  3. Step 3: Cross multiply
    387,364.73x = 579,797.17 × 200,118.65
  4. Step 4: Simplify right side
    387,364.73x = 116,028,226,934.22
  5. Step 5: Solve for x
    x = 116,028,226,934.22/387,364.73
  6. Step 6: Final answer
    x = 299,532.24

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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.