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Finding the Fourth Proportional to 319,504.34, 440,958.76 and 203,229.13

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Solution

The fourth proportional to 319,504.34, 440,958.76 and 203,229.13 is: 280,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,504.34 : 440,958.76 = 203,229.13 : x
  2. Step 2: Convert to fraction form
    319,504.34/440,958.76 = 203,229.13/x
  3. Step 3: Cross multiply
    319,504.34x = 440,958.76 × 203,229.13
  4. Step 4: Simplify right side
    319,504.34x = 89,615,665,105.11
  5. Step 5: Solve for x
    x = 89,615,665,105.11/319,504.34
  6. Step 6: Final answer
    x = 280,483.40

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1.5x scale

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.