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Finding the Fourth Proportional to 336.15, 500.51 and 316.11

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Solution

The fourth proportional to 336.15, 500.51 and 316.11 is: 470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.15 : 500.51 = 316.11 : x
  2. Step 2: Convert to fraction form
    336.15/500.51 = 316.11/x
  3. Step 3: Cross multiply
    336.15x = 500.51 × 316.11
  4. Step 4: Simplify right side
    336.15x = 158,214.64
  5. Step 5: Solve for x
    x = 158,214.64/336.15
  6. Step 6: Final answer
    x = 470.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.