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Finding the Fourth Proportional to 342.11, 469.13 and 325.10

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Solution

The fourth proportional to 342.11, 469.13 and 325.10 is: 445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.11 : 469.13 = 325.10 : x
  2. Step 2: Convert to fraction form
    342.11/469.13 = 325.10/x
  3. Step 3: Cross multiply
    342.11x = 469.13 × 325.10
  4. Step 4: Simplify right side
    342.11x = 152,510.19
  5. Step 5: Solve for x
    x = 152,510.19/342.11
  6. Step 6: Final answer
    x = 445.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.