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Finding the Fourth Proportional to 356,300.60, 491,694.72 and 195,165.68

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Solution

The fourth proportional to 356,300.60, 491,694.72 and 195,165.68 is: 269,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,300.60 : 491,694.72 = 195,165.68 : x
  2. Step 2: Convert to fraction form
    356,300.60/491,694.72 = 195,165.68/x
  3. Step 3: Cross multiply
    356,300.60x = 491,694.72 × 195,165.68
  4. Step 4: Simplify right side
    356,300.60x = 95,961,934,381.21
  5. Step 5: Solve for x
    x = 95,961,934,381.21/356,300.60
  6. Step 6: Final answer
    x = 269,328.58

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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.