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Finding the Fourth Proportional to 356,459.72, 491,914.41 and 195,320.88

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Solution

The fourth proportional to 356,459.72, 491,914.41 and 195,320.88 is: 269,542.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,459.72 : 491,914.41 = 195,320.88 : x
  2. Step 2: Convert to fraction form
    356,459.72/491,914.41 = 195,320.88/x
  3. Step 3: Cross multiply
    356,459.72x = 491,914.41 × 195,320.88
  4. Step 4: Simplify right side
    356,459.72x = 96,081,155,445.88
  5. Step 5: Solve for x
    x = 96,081,155,445.88/356,459.72
  6. Step 6: Final answer
    x = 269,542.82

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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.