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Finding the Fourth Proportional to 335.17, 462.18 and 288.67

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Solution

The fourth proportional to 335.17, 462.18 and 288.67 is: 398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.17 : 462.18 = 288.67 : x
  2. Step 2: Convert to fraction form
    335.17/462.18 = 288.67/x
  3. Step 3: Cross multiply
    335.17x = 462.18 × 288.67
  4. Step 4: Simplify right side
    335.17x = 133,417.50
  5. Step 5: Solve for x
    x = 133,417.50/335.17
  6. Step 6: Final answer
    x = 398.06

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