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Finding the Fourth Proportional to 306.54, 459.70 and 101.05

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Solution

The fourth proportional to 306.54, 459.70 and 101.05 is: 151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.54 : 459.70 = 101.05 : x
  2. Step 2: Convert to fraction form
    306.54/459.70 = 101.05/x
  3. Step 3: Cross multiply
    306.54x = 459.70 × 101.05
  4. Step 4: Simplify right side
    306.54x = 46,451.28
  5. Step 5: Solve for x
    x = 46,451.28/306.54
  6. Step 6: Final answer
    x = 151.53

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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.