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Finding the Fourth Proportional to 294,665.60, 442,223.04 and 215,981.12

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Solution

The fourth proportional to 294,665.60, 442,223.04 and 215,981.12 is: 324,136.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,665.60 : 442,223.04 = 215,981.12 : x
  2. Step 2: Convert to fraction form
    294,665.60/442,223.04 = 215,981.12/x
  3. Step 3: Cross multiply
    294,665.60x = 442,223.04 × 215,981.12
  4. Step 4: Simplify right side
    294,665.60x = 95,511,827,469.00
  5. Step 5: Solve for x
    x = 95,511,827,469.00/294,665.60
  6. Step 6: Final answer
    x = 324,136.33

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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.