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Finding the Fourth Proportional to 221,830.40, 332,801.73 and 61,906.31

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Solution

The fourth proportional to 221,830.40, 332,801.73 and 61,906.31 is: 92,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,830.40 : 332,801.73 = 61,906.31 : x
  2. Step 2: Convert to fraction form
    221,830.40/332,801.73 = 61,906.31/x
  3. Step 3: Cross multiply
    221,830.40x = 332,801.73 × 61,906.31
  4. Step 4: Simplify right side
    221,830.40x = 20,602,526,649.91
  5. Step 5: Solve for x
    x = 20,602,526,649.91/221,830.40
  6. Step 6: Final answer
    x = 92,875.13

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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.