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Finding the Fourth Proportional to 325.12, 448.68 and 260.10

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Solution

The fourth proportional to 325.12, 448.68 and 260.10 is: 358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.12 : 448.68 = 260.10 : x
  2. Step 2: Convert to fraction form
    325.12/448.68 = 260.10/x
  3. Step 3: Cross multiply
    325.12x = 448.68 × 260.10
  4. Step 4: Simplify right side
    325.12x = 116,701.67
  5. Step 5: Solve for x
    x = 116,701.67/325.12
  6. Step 6: Final answer
    x = 358.95

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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.