Home / 330,414.11-455,994.02-187,175.33

Finding the Fourth Proportional to 330,414.11, 455,994.02 and 187,175.33

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Solution

The fourth proportional to 330,414.11, 455,994.02 and 187,175.33 is: 258,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,414.11 : 455,994.02 = 187,175.33 : x
  2. Step 2: Convert to fraction form
    330,414.11/455,994.02 = 187,175.33/x
  3. Step 3: Cross multiply
    330,414.11x = 455,994.02 × 187,175.33
  4. Step 4: Simplify right side
    330,414.11x = 85,350,831,171.53
  5. Step 5: Solve for x
    x = 85,350,831,171.53/330,414.11
  6. Step 6: Final answer
    x = 258,314.73

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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.