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Finding the Fourth Proportional to 159.84, 240.86 and 154.98

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Solution

The fourth proportional to 159.84, 240.86 and 154.98 is: 233.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.84 : 240.86 = 154.98 : x
  2. Step 2: Convert to fraction form
    159.84/240.86 = 154.98/x
  3. Step 3: Cross multiply
    159.84x = 240.86 × 154.98
  4. Step 4: Simplify right side
    159.84x = 37,328.48
  5. Step 5: Solve for x
    x = 37,328.48/159.84
  6. Step 6: Final answer
    x = 233.54

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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.