Home / 330,312.27-455,836.94-187,102.05

Finding the Fourth Proportional to 330,312.27, 455,836.94 and 187,102.05

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Solution

The fourth proportional to 330,312.27, 455,836.94 and 187,102.05 is: 258,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,312.27 : 455,836.94 = 187,102.05 : x
  2. Step 2: Convert to fraction form
    330,312.27/455,836.94 = 187,102.05/x
  3. Step 3: Cross multiply
    330,312.27x = 455,836.94 × 187,102.05
  4. Step 4: Simplify right side
    330,312.27x = 85,288,023,660.54
  5. Step 5: Solve for x
    x = 85,288,023,660.54/330,312.27
  6. Step 6: Final answer
    x = 258,204.22

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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.