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Finding the Fourth Proportional to 156.77, 216.25 and 110.08

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Solution

The fourth proportional to 156.77, 216.25 and 110.08 is: 151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.77 : 216.25 = 110.08 : x
  2. Step 2: Convert to fraction form
    156.77/216.25 = 110.08/x
  3. Step 3: Cross multiply
    156.77x = 216.25 × 110.08
  4. Step 4: Simplify right side
    156.77x = 23,803.17
  5. Step 5: Solve for x
    x = 23,803.17/156.77
  6. Step 6: Final answer
    x = 151.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.