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Finding the Fourth Proportional to 651.05, 976.29 and 260.97

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Solution

The fourth proportional to 651.05, 976.29 and 260.97 is: 391.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.05 : 976.29 = 260.97 : x
  2. Step 2: Convert to fraction form
    651.05/976.29 = 260.97/x
  3. Step 3: Cross multiply
    651.05x = 976.29 × 260.97
  4. Step 4: Simplify right side
    651.05x = 254,782.40
  5. Step 5: Solve for x
    x = 254,782.40/651.05
  6. Step 6: Final answer
    x = 391.34

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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.