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Finding the Fourth Proportional to 350.86, 526.31 and 253.14

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Solution

The fourth proportional to 350.86, 526.31 and 253.14 is: 379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.86 : 526.31 = 253.14 : x
  2. Step 2: Convert to fraction form
    350.86/526.31 = 253.14/x
  3. Step 3: Cross multiply
    350.86x = 526.31 × 253.14
  4. Step 4: Simplify right side
    350.86x = 133,230.11
  5. Step 5: Solve for x
    x = 133,230.11/350.86
  6. Step 6: Final answer
    x = 379.72

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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.