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Finding the Fourth Proportional to 526.67, 727.07 and 379.65

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Solution

The fourth proportional to 526.67, 727.07 and 379.65 is: 524.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.67 : 727.07 = 379.65 : x
  2. Step 2: Convert to fraction form
    526.67/727.07 = 379.65/x
  3. Step 3: Cross multiply
    526.67x = 727.07 × 379.65
  4. Step 4: Simplify right side
    526.67x = 276,030.23
  5. Step 5: Solve for x
    x = 276,030.23/526.67
  6. Step 6: Final answer
    x = 524.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.