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Finding the Fourth Proportional to 524.45, 723.81 and 300.47

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Solution

The fourth proportional to 524.45, 723.81 and 300.47 is: 414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.45 : 723.81 = 300.47 : x
  2. Step 2: Convert to fraction form
    524.45/723.81 = 300.47/x
  3. Step 3: Cross multiply
    524.45x = 723.81 × 300.47
  4. Step 4: Simplify right side
    524.45x = 217,484.94
  5. Step 5: Solve for x
    x = 217,484.94/524.45
  6. Step 6: Final answer
    x = 414.69

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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.