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Finding the Fourth Proportional to 323,679, 485,518.50 and 102,063

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Solution

The fourth proportional to 323,679, 485,518.50 and 102,063 is: 153,094.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,679 : 485,518.50 = 102,063 : x
  2. Step 2: Convert to fraction form
    323,679/485,518.50 = 102,063/x
  3. Step 3: Cross multiply
    323,679x = 485,518.50 × 102,063
  4. Step 4: Simplify right side
    323,679x = 49,553,474,665.50
  5. Step 5: Solve for x
    x = 49,553,474,665.50/323,679
  6. Step 6: Final answer
    x = 153,094.50

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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.