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Finding the Fourth Proportional to 330,282.67, 455,790.96 and 194,321.74

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Solution

The fourth proportional to 330,282.67, 455,790.96 and 194,321.74 is: 268,164.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,282.67 : 455,790.96 = 194,321.74 : x
  2. Step 2: Convert to fraction form
    330,282.67/455,790.96 = 194,321.74/x
  3. Step 3: Cross multiply
    330,282.67x = 455,790.96 × 194,321.74
  4. Step 4: Simplify right side
    330,282.67x = 88,570,090,144.52
  5. Step 5: Solve for x
    x = 88,570,090,144.52/330,282.67
  6. Step 6: Final answer
    x = 268,164.51

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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.