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Finding the Fourth Proportional to 160.10, 240.18 and 57.39

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Solution

The fourth proportional to 160.10, 240.18 and 57.39 is: 86.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.10 : 240.18 = 57.39 : x
  2. Step 2: Convert to fraction form
    160.10/240.18 = 57.39/x
  3. Step 3: Cross multiply
    160.10x = 240.18 × 57.39
  4. Step 4: Simplify right side
    160.10x = 13,783.93
  5. Step 5: Solve for x
    x = 13,783.93/160.10
  6. Step 6: Final answer
    x = 86.10

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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.