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Finding the Fourth Proportional to 270,561.49, 405,860.06 and 70,886.77

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Solution

The fourth proportional to 270,561.49, 405,860.06 and 70,886.77 is: 106,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,561.49 : 405,860.06 = 70,886.77 : x
  2. Step 2: Convert to fraction form
    270,561.49/405,860.06 = 70,886.77/x
  3. Step 3: Cross multiply
    270,561.49x = 405,860.06 × 70,886.77
  4. Step 4: Simplify right side
    270,561.49x = 28,770,108,725.41
  5. Step 5: Solve for x
    x = 28,770,108,725.41/270,561.49
  6. Step 6: Final answer
    x = 106,334.83

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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.