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Finding the Fourth Proportional to 330,755.91, 456,387.82 and 194,816.93

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Solution

The fourth proportional to 330,755.91, 456,387.82 and 194,816.93 is: 268,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,755.91 : 456,387.82 = 194,816.93 : x
  2. Step 2: Convert to fraction form
    330,755.91/456,387.82 = 194,816.93/x
  3. Step 3: Cross multiply
    330,755.91x = 456,387.82 × 194,816.93
  4. Step 4: Simplify right side
    330,755.91x = 88,912,073,981.79
  5. Step 5: Solve for x
    x = 88,912,073,981.79/330,755.91
  6. Step 6: Final answer
    x = 268,814.77

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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.