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Finding the Fourth Proportional to 158.90, 237.87 and 130.10

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Solution

The fourth proportional to 158.90, 237.87 and 130.10 is: 194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.90 : 237.87 = 130.10 : x
  2. Step 2: Convert to fraction form
    158.90/237.87 = 130.10/x
  3. Step 3: Cross multiply
    158.90x = 237.87 × 130.10
  4. Step 4: Simplify right side
    158.90x = 30,946.89
  5. Step 5: Solve for x
    x = 30,946.89/158.90
  6. Step 6: Final answer
    x = 194.76

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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.