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Finding the Fourth Proportional to 651.20, 977.27 and 376.93

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Solution

The fourth proportional to 651.20, 977.27 and 376.93 is: 565.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.20 : 977.27 = 376.93 : x
  2. Step 2: Convert to fraction form
    651.20/977.27 = 376.93/x
  3. Step 3: Cross multiply
    651.20x = 977.27 × 376.93
  4. Step 4: Simplify right side
    651.20x = 368,358.05
  5. Step 5: Solve for x
    x = 368,358.05/651.20
  6. Step 6: Final answer
    x = 565.66

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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.