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Finding the Fourth Proportional to 273,871.80, 410,807.70 and 126,415.80

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Solution

The fourth proportional to 273,871.80, 410,807.70 and 126,415.80 is: 189,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,871.80 : 410,807.70 = 126,415.80 : x
  2. Step 2: Convert to fraction form
    273,871.80/410,807.70 = 126,415.80/x
  3. Step 3: Cross multiply
    273,871.80x = 410,807.70 × 126,415.80
  4. Step 4: Simplify right side
    273,871.80x = 51,932,584,041.66
  5. Step 5: Solve for x
    x = 51,932,584,041.66/273,871.80
  6. Step 6: Final answer
    x = 189,623.70

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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.