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Finding the Fourth Proportional to 330,053.68, 454,657.80 and 281,496.88

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Solution

The fourth proportional to 330,053.68, 454,657.80 and 281,496.88 is: 387,769.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,053.68 : 454,657.80 = 281,496.88 : x
  2. Step 2: Convert to fraction form
    330,053.68/454,657.80 = 281,496.88/x
  3. Step 3: Cross multiply
    330,053.68x = 454,657.80 × 281,496.88
  4. Step 4: Simplify right side
    330,053.68x = 127,984,752,167.66
  5. Step 5: Solve for x
    x = 127,984,752,167.66/330,053.68
  6. Step 6: Final answer
    x = 387,769.51

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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.