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Finding the Fourth Proportional to 323,705.10, 485,442.45 and 146,297.10

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Solution

The fourth proportional to 323,705.10, 485,442.45 and 146,297.10 is: 219,393.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,705.10 : 485,442.45 = 146,297.10 : x
  2. Step 2: Convert to fraction form
    323,705.10/485,442.45 = 146,297.10/x
  3. Step 3: Cross multiply
    323,705.10x = 485,442.45 × 146,297.10
  4. Step 4: Simplify right side
    323,705.10x = 71,018,822,651.90
  5. Step 5: Solve for x
    x = 71,018,822,651.90/323,705.10
  6. Step 6: Final answer
    x = 219,393.59

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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.