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Finding the Fourth Proportional to 524.15, 723.33 and 288.11

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Solution

The fourth proportional to 524.15, 723.33 and 288.11 is: 397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.15 : 723.33 = 288.11 : x
  2. Step 2: Convert to fraction form
    524.15/723.33 = 288.11/x
  3. Step 3: Cross multiply
    524.15x = 723.33 × 288.11
  4. Step 4: Simplify right side
    524.15x = 208,396.35
  5. Step 5: Solve for x
    x = 208,396.35/524.15
  6. Step 6: Final answer
    x = 397.59

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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.