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Finding the Fourth Proportional to 323,487.39, 485,318.43 and 98,841.67

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Solution

The fourth proportional to 323,487.39, 485,318.43 and 98,841.67 is: 148,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,487.39 : 485,318.43 = 98,841.67 : x
  2. Step 2: Convert to fraction form
    323,487.39/485,318.43 = 98,841.67/x
  3. Step 3: Cross multiply
    323,487.39x = 485,318.43 × 98,841.67
  4. Step 4: Simplify right side
    323,487.39x = 47,969,684,102.98
  5. Step 5: Solve for x
    x = 47,969,684,102.98/323,487.39
  6. Step 6: Final answer
    x = 148,289.19

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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.