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Finding the Fourth Proportional to 465.93, 643.10 and 269.52

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Solution

The fourth proportional to 465.93, 643.10 and 269.52 is: 372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.93 : 643.10 = 269.52 : x
  2. Step 2: Convert to fraction form
    465.93/643.10 = 269.52/x
  3. Step 3: Cross multiply
    465.93x = 643.10 × 269.52
  4. Step 4: Simplify right side
    465.93x = 173,328.31
  5. Step 5: Solve for x
    x = 173,328.31/465.93
  6. Step 6: Final answer
    x = 372.01

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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.