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Finding the Fourth Proportional to 176.70, 243.62 and 145.08

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Solution

The fourth proportional to 176.70, 243.62 and 145.08 is: 200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.70 : 243.62 = 145.08 : x
  2. Step 2: Convert to fraction form
    176.70/243.62 = 145.08/x
  3. Step 3: Cross multiply
    176.70x = 243.62 × 145.08
  4. Step 4: Simplify right side
    176.70x = 35,343.06
  5. Step 5: Solve for x
    x = 35,343.06/176.70
  6. Step 6: Final answer
    x = 200.01

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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.