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Finding the Fourth Proportional to 234,934, 324,478.04 and 154,720.08

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Solution

The fourth proportional to 234,934, 324,478.04 and 154,720.08 is: 213,690.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,934 : 324,478.04 = 154,720.08 : x
  2. Step 2: Convert to fraction form
    234,934/324,478.04 = 154,720.08/x
  3. Step 3: Cross multiply
    234,934x = 324,478.04 × 154,720.08
  4. Step 4: Simplify right side
    234,934x = 50,203,268,307.04
  5. Step 5: Solve for x
    x = 50,203,268,307.04/234,934
  6. Step 6: Final answer
    x = 213,690.94

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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.