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Finding the Fourth Proportional to 156.41, 234.58 and 60.22

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Solution

The fourth proportional to 156.41, 234.58 and 60.22 is: 90.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.41 : 234.58 = 60.22 : x
  2. Step 2: Convert to fraction form
    156.41/234.58 = 60.22/x
  3. Step 3: Cross multiply
    156.41x = 234.58 × 60.22
  4. Step 4: Simplify right side
    156.41x = 14,126.11
  5. Step 5: Solve for x
    x = 14,126.11/156.41
  6. Step 6: Final answer
    x = 90.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.