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Finding the Fourth Proportional to 221,800.60, 332,986.92 and 190,412.37

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Solution

The fourth proportional to 221,800.60, 332,986.92 and 190,412.37 is: 285,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,800.60 : 332,986.92 = 190,412.37 : x
  2. Step 2: Convert to fraction form
    221,800.60/332,986.92 = 190,412.37/x
  3. Step 3: Cross multiply
    221,800.60x = 332,986.92 × 190,412.37
  4. Step 4: Simplify right side
    221,800.60x = 63,404,829,508.76
  5. Step 5: Solve for x
    x = 63,404,829,508.76/221,800.60
  6. Step 6: Final answer
    x = 285,864.10

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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.