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Finding the Fourth Proportional to 326,979, 490,203.72 and 102,223.62

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Solution

The fourth proportional to 326,979, 490,203.72 and 102,223.62 is: 153,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,979 : 490,203.72 = 102,223.62 : x
  2. Step 2: Convert to fraction form
    326,979/490,203.72 = 102,223.62/x
  3. Step 3: Cross multiply
    326,979x = 490,203.72 × 102,223.62
  4. Step 4: Simplify right side
    326,979x = 50,110,398,795.87
  5. Step 5: Solve for x
    x = 50,110,398,795.87/326,979
  6. Step 6: Final answer
    x = 153,252.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.