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Finding the Fourth Proportional to 651.16, 897.66 and 495.64

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Solution

The fourth proportional to 651.16, 897.66 and 495.64 is: 683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.16 : 897.66 = 495.64 : x
  2. Step 2: Convert to fraction form
    651.16/897.66 = 495.64/x
  3. Step 3: Cross multiply
    651.16x = 897.66 × 495.64
  4. Step 4: Simplify right side
    651.16x = 444,916.20
  5. Step 5: Solve for x
    x = 444,916.20/651.16
  6. Step 6: Final answer
    x = 683.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.