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Finding the Fourth Proportional to 150.60, 207.72 and 98.10

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Solution

The fourth proportional to 150.60, 207.72 and 98.10 is: 135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.60 : 207.72 = 98.10 : x
  2. Step 2: Convert to fraction form
    150.60/207.72 = 98.10/x
  3. Step 3: Cross multiply
    150.60x = 207.72 × 98.10
  4. Step 4: Simplify right side
    150.60x = 20,377.33
  5. Step 5: Solve for x
    x = 20,377.33/150.60
  6. Step 6: Final answer
    x = 135.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.