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Finding the Fourth Proportional to 854.02, 1,280.96 and 333.92

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Solution

The fourth proportional to 854.02, 1,280.96 and 333.92 is: 500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    854.02 : 1,280.96 = 333.92 : x
  2. Step 2: Convert to fraction form
    854.02/1,280.96 = 333.92/x
  3. Step 3: Cross multiply
    854.02x = 1,280.96 × 333.92
  4. Step 4: Simplify right side
    854.02x = 427,733.29
  5. Step 5: Solve for x
    x = 427,733.29/854.02
  6. Step 6: Final answer
    x = 500.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.