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Finding the Fourth Proportional to 303,950.96, 456,018.60 and 215,376.08

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Solution

The fourth proportional to 303,950.96, 456,018.60 and 215,376.08 is: 323,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,950.96 : 456,018.60 = 215,376.08 : x
  2. Step 2: Convert to fraction form
    303,950.96/456,018.60 = 215,376.08/x
  3. Step 3: Cross multiply
    303,950.96x = 456,018.60 × 215,376.08
  4. Step 4: Simplify right side
    303,950.96x = 98,215,498,475.09
  5. Step 5: Solve for x
    x = 98,215,498,475.09/303,950.96
  6. Step 6: Final answer
    x = 323,129.42

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Why These Related Problems?

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