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Finding the Fourth Proportional to 313.02, 468.36 and 266.76

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Solution

The fourth proportional to 313.02, 468.36 and 266.76 is: 399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.02 : 468.36 = 266.76 : x
  2. Step 2: Convert to fraction form
    313.02/468.36 = 266.76/x
  3. Step 3: Cross multiply
    313.02x = 468.36 × 266.76
  4. Step 4: Simplify right side
    313.02x = 124,939.71
  5. Step 5: Solve for x
    x = 124,939.71/313.02
  6. Step 6: Final answer
    x = 399.14

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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.