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Finding the Fourth Proportional to 651.89, 977.10 and 240.68

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Solution

The fourth proportional to 651.89, 977.10 and 240.68 is: 360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.89 : 977.10 = 240.68 : x
  2. Step 2: Convert to fraction form
    651.89/977.10 = 240.68/x
  3. Step 3: Cross multiply
    651.89x = 977.10 × 240.68
  4. Step 4: Simplify right side
    651.89x = 235,163.54
  5. Step 5: Solve for x
    x = 235,163.54/651.89
  6. Step 6: Final answer
    x = 360.74

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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.