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Finding the Fourth Proportional to 259.32, 390.93 and 241.70

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Solution

The fourth proportional to 259.32, 390.93 and 241.70 is: 364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.32 : 390.93 = 241.70 : x
  2. Step 2: Convert to fraction form
    259.32/390.93 = 241.70/x
  3. Step 3: Cross multiply
    259.32x = 390.93 × 241.70
  4. Step 4: Simplify right side
    259.32x = 94,485.83
  5. Step 5: Solve for x
    x = 94,485.83/259.32
  6. Step 6: Final answer
    x = 364.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.