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Finding the Fourth Proportional to 351.48, 526.28 and 235.74

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Solution

The fourth proportional to 351.48, 526.28 and 235.74 is: 352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.48 : 526.28 = 235.74 : x
  2. Step 2: Convert to fraction form
    351.48/526.28 = 235.74/x
  3. Step 3: Cross multiply
    351.48x = 526.28 × 235.74
  4. Step 4: Simplify right side
    351.48x = 124,065.25
  5. Step 5: Solve for x
    x = 124,065.25/351.48
  6. Step 6: Final answer
    x = 352.98

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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.