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Finding the Fourth Proportional to 173.55, 259.10 and 147.60

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Solution

The fourth proportional to 173.55, 259.10 and 147.60 is: 220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.55 : 259.10 = 147.60 : x
  2. Step 2: Convert to fraction form
    173.55/259.10 = 147.60/x
  3. Step 3: Cross multiply
    173.55x = 259.10 × 147.60
  4. Step 4: Simplify right side
    173.55x = 38,242.42
  5. Step 5: Solve for x
    x = 38,242.42/173.55
  6. Step 6: Final answer
    x = 220.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.