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Finding the Fourth Proportional to 356,423.92, 491,864.98 and 195,285.06

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Solution

The fourth proportional to 356,423.92, 491,864.98 and 195,285.06 is: 269,493.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,423.92 : 491,864.98 = 195,285.06 : x
  2. Step 2: Convert to fraction form
    356,423.92/491,864.98 = 195,285.06/x
  3. Step 3: Cross multiply
    356,423.92x = 491,864.98 × 195,285.06
  4. Step 4: Simplify right side
    356,423.92x = 96,053,882,131.20
  5. Step 5: Solve for x
    x = 96,053,882,131.20/356,423.92
  6. Step 6: Final answer
    x = 269,493.37

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1.5x scale

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.