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Finding the Fourth Proportional to 323,721.36, 485,626.32 and 304,038.36

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Solution

The fourth proportional to 323,721.36, 485,626.32 and 304,038.36 is: 456,099.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,721.36 : 485,626.32 = 304,038.36 : x
  2. Step 2: Convert to fraction form
    323,721.36/485,626.32 = 304,038.36/x
  3. Step 3: Cross multiply
    323,721.36x = 485,626.32 × 304,038.36
  4. Step 4: Simplify right side
    323,721.36x = 147,649,029,905.64
  5. Step 5: Solve for x
    x = 147,649,029,905.64/323,721.36
  6. Step 6: Final answer
    x = 456,099.13

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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.