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Finding the Fourth Proportional to 526.70, 789.66 and 249.07

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Solution

The fourth proportional to 526.70, 789.66 and 249.07 is: 373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.70 : 789.66 = 249.07 : x
  2. Step 2: Convert to fraction form
    526.70/789.66 = 249.07/x
  3. Step 3: Cross multiply
    526.70x = 789.66 × 249.07
  4. Step 4: Simplify right side
    526.70x = 196,678.64
  5. Step 5: Solve for x
    x = 196,678.64/526.70
  6. Step 6: Final answer
    x = 373.42

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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.