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Finding the Fourth Proportional to 161.60, 240.68 and 155.93

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Solution

The fourth proportional to 161.60, 240.68 and 155.93 is: 232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.60 : 240.68 = 155.93 : x
  2. Step 2: Convert to fraction form
    161.60/240.68 = 155.93/x
  3. Step 3: Cross multiply
    161.60x = 240.68 × 155.93
  4. Step 4: Simplify right side
    161.60x = 37,529.23
  5. Step 5: Solve for x
    x = 37,529.23/161.60
  6. Step 6: Final answer
    x = 232.24

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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.