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Finding the Fourth Proportional to 526.32, 789.14 and 266.02

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Solution

The fourth proportional to 526.32, 789.14 and 266.02 is: 398.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.32 : 789.14 = 266.02 : x
  2. Step 2: Convert to fraction form
    526.32/789.14 = 266.02/x
  3. Step 3: Cross multiply
    526.32x = 789.14 × 266.02
  4. Step 4: Simplify right side
    526.32x = 209,927.02
  5. Step 5: Solve for x
    x = 209,927.02/526.32
  6. Step 6: Final answer
    x = 398.86

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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.