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Finding the Fourth Proportional to 361,454.84, 541,320.41 and 209,330.49

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Solution

The fourth proportional to 361,454.84, 541,320.41 and 209,330.49 is: 313,496.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,454.84 : 541,320.41 = 209,330.49 : x
  2. Step 2: Convert to fraction form
    361,454.84/541,320.41 = 209,330.49/x
  3. Step 3: Cross multiply
    361,454.84x = 541,320.41 × 209,330.49
  4. Step 4: Simplify right side
    361,454.84x = 113,314,868,636.84
  5. Step 5: Solve for x
    x = 113,314,868,636.84/361,454.84
  6. Step 6: Final answer
    x = 313,496.62

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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.