Home / 206,848.60-309,981.30-127,727.80

Finding the Fourth Proportional to 206,848.60, 309,981.30 and 127,727.80

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Solution

The fourth proportional to 206,848.60, 309,981.30 and 127,727.80 is: 191,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,848.60 : 309,981.30 = 127,727.80 : x
  2. Step 2: Convert to fraction form
    206,848.60/309,981.30 = 127,727.80/x
  3. Step 3: Cross multiply
    206,848.60x = 309,981.30 × 127,727.80
  4. Step 4: Simplify right side
    206,848.60x = 39,593,229,490.14
  5. Step 5: Solve for x
    x = 39,593,229,490.14/206,848.60
  6. Step 6: Final answer
    x = 191,411.64

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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.