Home / 221,818.50-306,087.59-135,801.73

Finding the Fourth Proportional to 221,818.50, 306,087.59 and 135,801.73

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Solution

The fourth proportional to 221,818.50, 306,087.59 and 135,801.73 is: 187,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,818.50 : 306,087.59 = 135,801.73 : x
  2. Step 2: Convert to fraction form
    221,818.50/306,087.59 = 135,801.73/x
  3. Step 3: Cross multiply
    221,818.50x = 306,087.59 × 135,801.73
  4. Step 4: Simplify right side
    221,818.50x = 41,567,224,975.64
  5. Step 5: Solve for x
    x = 41,567,224,975.64/221,818.50
  6. Step 6: Final answer
    x = 187,392.96

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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.