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Finding the Fourth Proportional to 325.36, 486.02 and 292.81

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Solution

The fourth proportional to 325.36, 486.02 and 292.81 is: 437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.36 : 486.02 = 292.81 : x
  2. Step 2: Convert to fraction form
    325.36/486.02 = 292.81/x
  3. Step 3: Cross multiply
    325.36x = 486.02 × 292.81
  4. Step 4: Simplify right side
    325.36x = 142,311.52
  5. Step 5: Solve for x
    x = 142,311.52/325.36
  6. Step 6: Final answer
    x = 437.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.