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Finding the Fourth Proportional to 651.23, 898.64 and 371.51

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Solution

The fourth proportional to 651.23, 898.64 and 371.51 is: 512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.23 : 898.64 = 371.51 : x
  2. Step 2: Convert to fraction form
    651.23/898.64 = 371.51/x
  3. Step 3: Cross multiply
    651.23x = 898.64 × 371.51
  4. Step 4: Simplify right side
    651.23x = 333,849.25
  5. Step 5: Solve for x
    x = 333,849.25/651.23
  6. Step 6: Final answer
    x = 512.65

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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.