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Finding the Fourth Proportional to 795.19, 1,192.47 and 308.11

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Solution

The fourth proportional to 795.19, 1,192.47 and 308.11 is: 462.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.19 : 1,192.47 = 308.11 : x
  2. Step 2: Convert to fraction form
    795.19/1,192.47 = 308.11/x
  3. Step 3: Cross multiply
    795.19x = 1,192.47 × 308.11
  4. Step 4: Simplify right side
    795.19x = 367,411.93
  5. Step 5: Solve for x
    x = 367,411.93/795.19
  6. Step 6: Final answer
    x = 462.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.