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Finding the Fourth Proportional to 160.77, 240.99 and 130.40

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Solution

The fourth proportional to 160.77, 240.99 and 130.40 is: 195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.77 : 240.99 = 130.40 : x
  2. Step 2: Convert to fraction form
    160.77/240.99 = 130.40/x
  3. Step 3: Cross multiply
    160.77x = 240.99 × 130.40
  4. Step 4: Simplify right side
    160.77x = 31,425.10
  5. Step 5: Solve for x
    x = 31,425.10/160.77
  6. Step 6: Final answer
    x = 195.47

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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.