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Finding the Fourth Proportional to 221,848.80, 332,335.80 and 206,102.40

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Solution

The fourth proportional to 221,848.80, 332,335.80 and 206,102.40 is: 308,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,848.80 : 332,335.80 = 206,102.40 : x
  2. Step 2: Convert to fraction form
    221,848.80/332,335.80 = 206,102.40/x
  3. Step 3: Cross multiply
    221,848.80x = 332,335.80 × 206,102.40
  4. Step 4: Simplify right side
    221,848.80x = 68,495,205,985.92
  5. Step 5: Solve for x
    x = 68,495,205,985.92/221,848.80
  6. Step 6: Final answer
    x = 308,747.25

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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.