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Finding the Fourth Proportional to 330,431.70, 455,990.13 and 179,527.62

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Solution

The fourth proportional to 330,431.70, 455,990.13 and 179,527.62 is: 247,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,431.70 : 455,990.13 = 179,527.62 : x
  2. Step 2: Convert to fraction form
    330,431.70/455,990.13 = 179,527.62/x
  3. Step 3: Cross multiply
    330,431.70x = 455,990.13 × 179,527.62
  4. Step 4: Simplify right side
    330,431.70x = 81,862,822,782.39
  5. Step 5: Solve for x
    x = 81,862,822,782.39/330,431.70
  6. Step 6: Final answer
    x = 247,745.06

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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.