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Finding the Fourth Proportional to 259.10, 386.56 and 244.70

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Solution

The fourth proportional to 259.10, 386.56 and 244.70 is: 365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.10 : 386.56 = 244.70 : x
  2. Step 2: Convert to fraction form
    259.10/386.56 = 244.70/x
  3. Step 3: Cross multiply
    259.10x = 386.56 × 244.70
  4. Step 4: Simplify right side
    259.10x = 94,591.23
  5. Step 5: Solve for x
    x = 94,591.23/259.10
  6. Step 6: Final answer
    x = 365.08

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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.