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Finding the Fourth Proportional to 469.51, 648.11 and 292.52

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Solution

The fourth proportional to 469.51, 648.11 and 292.52 is: 403.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.51 : 648.11 = 292.52 : x
  2. Step 2: Convert to fraction form
    469.51/648.11 = 292.52/x
  3. Step 3: Cross multiply
    469.51x = 648.11 × 292.52
  4. Step 4: Simplify right side
    469.51x = 189,585.14
  5. Step 5: Solve for x
    x = 189,585.14/469.51
  6. Step 6: Final answer
    x = 403.79

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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.