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Finding the Fourth Proportional to 526.19, 789.30 and 179.51

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Solution

The fourth proportional to 526.19, 789.30 and 179.51 is: 269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.19 : 789.30 = 179.51 : x
  2. Step 2: Convert to fraction form
    526.19/789.30 = 179.51/x
  3. Step 3: Cross multiply
    526.19x = 789.30 × 179.51
  4. Step 4: Simplify right side
    526.19x = 141,683.30
  5. Step 5: Solve for x
    x = 141,683.30/526.19
  6. Step 6: Final answer
    x = 269.27

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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.