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Finding the Fourth Proportional to 150.84, 209.14 and 145.70

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Solution

The fourth proportional to 150.84, 209.14 and 145.70 is: 202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.84 : 209.14 = 145.70 : x
  2. Step 2: Convert to fraction form
    150.84/209.14 = 145.70/x
  3. Step 3: Cross multiply
    150.84x = 209.14 × 145.70
  4. Step 4: Simplify right side
    150.84x = 30,471.70
  5. Step 5: Solve for x
    x = 30,471.70/150.84
  6. Step 6: Final answer
    x = 202.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.