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Finding the Fourth Proportional to 145.52, 218.20 and 94.14

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Solution

The fourth proportional to 145.52, 218.20 and 94.14 is: 141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145.52 : 218.20 = 94.14 : x
  2. Step 2: Convert to fraction form
    145.52/218.20 = 94.14/x
  3. Step 3: Cross multiply
    145.52x = 218.20 × 94.14
  4. Step 4: Simplify right side
    145.52x = 20,541.35
  5. Step 5: Solve for x
    x = 20,541.35/145.52
  6. Step 6: Final answer
    x = 141.16

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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.