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Finding the Fourth Proportional to 330,124.56, 455,680.32 and 194,152.56

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Solution

The fourth proportional to 330,124.56, 455,680.32 and 194,152.56 is: 267,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,124.56 : 455,680.32 = 194,152.56 : x
  2. Step 2: Convert to fraction form
    330,124.56/455,680.32 = 194,152.56/x
  3. Step 3: Cross multiply
    330,124.56x = 455,680.32 × 194,152.56
  4. Step 4: Simplify right side
    330,124.56x = 88,471,500,669.62
  5. Step 5: Solve for x
    x = 88,471,500,669.62/330,124.56
  6. Step 6: Final answer
    x = 267,994.30

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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.