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Finding the Fourth Proportional to 655.68, 983.50 and 366.50

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Solution

The fourth proportional to 655.68, 983.50 and 366.50 is: 549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.68 : 983.50 = 366.50 : x
  2. Step 2: Convert to fraction form
    655.68/983.50 = 366.50/x
  3. Step 3: Cross multiply
    655.68x = 983.50 × 366.50
  4. Step 4: Simplify right side
    655.68x = 360,452.75
  5. Step 5: Solve for x
    x = 360,452.75/655.68
  6. Step 6: Final answer
    x = 549.74

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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.