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Finding the Fourth Proportional to 156.02, 233.62 and 104.65

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Solution

The fourth proportional to 156.02, 233.62 and 104.65 is: 156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.02 : 233.62 = 104.65 : x
  2. Step 2: Convert to fraction form
    156.02/233.62 = 104.65/x
  3. Step 3: Cross multiply
    156.02x = 233.62 × 104.65
  4. Step 4: Simplify right side
    156.02x = 24,447.49
  5. Step 5: Solve for x
    x = 24,447.49/156.02
  6. Step 6: Final answer
    x = 156.70

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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.