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Finding the Fourth Proportional to 351.18, 525.56 and 242.51

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Solution

The fourth proportional to 351.18, 525.56 and 242.51 is: 362.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.18 : 525.56 = 242.51 : x
  2. Step 2: Convert to fraction form
    351.18/525.56 = 242.51/x
  3. Step 3: Cross multiply
    351.18x = 525.56 × 242.51
  4. Step 4: Simplify right side
    351.18x = 127,449.72
  5. Step 5: Solve for x
    x = 127,449.72/351.18
  6. Step 6: Final answer
    x = 362.92

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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.