Home / 227,619.40-341,429.10-121,331.20

Finding the Fourth Proportional to 227,619.40, 341,429.10 and 121,331.20

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Solution

The fourth proportional to 227,619.40, 341,429.10 and 121,331.20 is: 181,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,619.40 : 341,429.10 = 121,331.20 : x
  2. Step 2: Convert to fraction form
    227,619.40/341,429.10 = 121,331.20/x
  3. Step 3: Cross multiply
    227,619.40x = 341,429.10 × 121,331.20
  4. Step 4: Simplify right side
    227,619.40x = 41,426,002,417.92
  5. Step 5: Solve for x
    x = 41,426,002,417.92/227,619.40
  6. Step 6: Final answer
    x = 181,996.80

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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.