Home / 330,372.38-455,875.20-194,376.42

Finding the Fourth Proportional to 330,372.38, 455,875.20 and 194,376.42

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Solution

The fourth proportional to 330,372.38, 455,875.20 and 194,376.42 is: 268,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,372.38 : 455,875.20 = 194,376.42 : x
  2. Step 2: Convert to fraction form
    330,372.38/455,875.20 = 194,376.42/x
  3. Step 3: Cross multiply
    330,372.38x = 455,875.20 × 194,376.42
  4. Step 4: Simplify right side
    330,372.38x = 88,611,389,342.78
  5. Step 5: Solve for x
    x = 88,611,389,342.78/330,372.38
  6. Step 6: Final answer
    x = 268,216.70

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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.