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Finding the Fourth Proportional to 335.86, 499.80 and 322.90

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Solution

The fourth proportional to 335.86, 499.80 and 322.90 is: 480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.86 : 499.80 = 322.90 : x
  2. Step 2: Convert to fraction form
    335.86/499.80 = 322.90/x
  3. Step 3: Cross multiply
    335.86x = 499.80 × 322.90
  4. Step 4: Simplify right side
    335.86x = 161,385.42
  5. Step 5: Solve for x
    x = 161,385.42/335.86
  6. Step 6: Final answer
    x = 480.51

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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.