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Finding the Fourth Proportional to 160.15, 240.23 and 61.32

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Solution

The fourth proportional to 160.15, 240.23 and 61.32 is: 91.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.15 : 240.23 = 61.32 : x
  2. Step 2: Convert to fraction form
    160.15/240.23 = 61.32/x
  3. Step 3: Cross multiply
    160.15x = 240.23 × 61.32
  4. Step 4: Simplify right side
    160.15x = 14,730.90
  5. Step 5: Solve for x
    x = 14,730.90/160.15
  6. Step 6: Final answer
    x = 91.98

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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.