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Finding the Fourth Proportional to 351.68, 525.49 and 242.60

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Solution

The fourth proportional to 351.68, 525.49 and 242.60 is: 362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.68 : 525.49 = 242.60 : x
  2. Step 2: Convert to fraction form
    351.68/525.49 = 242.60/x
  3. Step 3: Cross multiply
    351.68x = 525.49 × 242.60
  4. Step 4: Simplify right side
    351.68x = 127,483.87
  5. Step 5: Solve for x
    x = 127,483.87/351.68
  6. Step 6: Final answer
    x = 362.50

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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.