Home / 206,853.50-285,470.06-155,776.12

Finding the Fourth Proportional to 206,853.50, 285,470.06 and 155,776.12

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Solution

The fourth proportional to 206,853.50, 285,470.06 and 155,776.12 is: 214,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,853.50 : 285,470.06 = 155,776.12 : x
  2. Step 2: Convert to fraction form
    206,853.50/285,470.06 = 155,776.12/x
  3. Step 3: Cross multiply
    206,853.50x = 285,470.06 × 155,776.12
  4. Step 4: Simplify right side
    206,853.50x = 44,469,416,830.41
  5. Step 5: Solve for x
    x = 44,469,416,830.41/206,853.50
  6. Step 6: Final answer
    x = 214,980.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.