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Finding the Fourth Proportional to 367.47, 507.15 and 242.87

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Solution

The fourth proportional to 367.47, 507.15 and 242.87 is: 335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.47 : 507.15 = 242.87 : x
  2. Step 2: Convert to fraction form
    367.47/507.15 = 242.87/x
  3. Step 3: Cross multiply
    367.47x = 507.15 × 242.87
  4. Step 4: Simplify right side
    367.47x = 123,168.98
  5. Step 5: Solve for x
    x = 123,168.98/367.47
  6. Step 6: Final answer
    x = 335.18

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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.