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Finding the Fourth Proportional to 98.03, 147.07 and 29.55

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Solution

The fourth proportional to 98.03, 147.07 and 29.55 is: 44.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.03 : 147.07 = 29.55 : x
  2. Step 2: Convert to fraction form
    98.03/147.07 = 29.55/x
  3. Step 3: Cross multiply
    98.03x = 147.07 × 29.55
  4. Step 4: Simplify right side
    98.03x = 4,346.51
  5. Step 5: Solve for x
    x = 4,346.51/98.03
  6. Step 6: Final answer
    x = 44.34

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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.