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Finding the Fourth Proportional to 260,999.51, 391,501.57 and 103,227.98

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Solution

The fourth proportional to 260,999.51, 391,501.57 and 103,227.98 is: 154,842.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,999.51 : 391,501.57 = 103,227.98 : x
  2. Step 2: Convert to fraction form
    260,999.51/391,501.57 = 103,227.98/x
  3. Step 3: Cross multiply
    260,999.51x = 391,501.57 × 103,227.98
  4. Step 4: Simplify right side
    260,999.51x = 40,413,914,022.35
  5. Step 5: Solve for x
    x = 40,413,914,022.35/260,999.51
  6. Step 6: Final answer
    x = 154,842.88

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1.5x scale

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.