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Finding the Fourth Proportional to 589.16, 883.08 and 280.76

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Solution

The fourth proportional to 589.16, 883.08 and 280.76 is: 420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.16 : 883.08 = 280.76 : x
  2. Step 2: Convert to fraction form
    589.16/883.08 = 280.76/x
  3. Step 3: Cross multiply
    589.16x = 883.08 × 280.76
  4. Step 4: Simplify right side
    589.16x = 247,933.54
  5. Step 5: Solve for x
    x = 247,933.54/589.16
  6. Step 6: Final answer
    x = 420.83

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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.