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Finding the Fourth Proportional to 161.04, 240 and 155.84

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Solution

The fourth proportional to 161.04, 240 and 155.84 is: 232.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.04 : 240 = 155.84 : x
  2. Step 2: Convert to fraction form
    161.04/240 = 155.84/x
  3. Step 3: Cross multiply
    161.04x = 240 × 155.84
  4. Step 4: Simplify right side
    161.04x = 37,401.60
  5. Step 5: Solve for x
    x = 37,401.60/161.04
  6. Step 6: Final answer
    x = 232.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.