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Finding the Fourth Proportional to 154.04, 231.92 and 106.26

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Solution

The fourth proportional to 154.04, 231.92 and 106.26 is: 159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.04 : 231.92 = 106.26 : x
  2. Step 2: Convert to fraction form
    154.04/231.92 = 106.26/x
  3. Step 3: Cross multiply
    154.04x = 231.92 × 106.26
  4. Step 4: Simplify right side
    154.04x = 24,643.82
  5. Step 5: Solve for x
    x = 24,643.82/154.04
  6. Step 6: Final answer
    x = 159.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.