Home / 306,790.24-423,399.12-179,457.76

Finding the Fourth Proportional to 306,790.24, 423,399.12 and 179,457.76

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Solution

The fourth proportional to 306,790.24, 423,399.12 and 179,457.76 is: 247,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,790.24 : 423,399.12 = 179,457.76 : x
  2. Step 2: Convert to fraction form
    306,790.24/423,399.12 = 179,457.76/x
  3. Step 3: Cross multiply
    306,790.24x = 423,399.12 × 179,457.76
  4. Step 4: Simplify right side
    306,790.24x = 75,982,257,661.17
  5. Step 5: Solve for x
    x = 75,982,257,661.17/306,790.24
  6. Step 6: Final answer
    x = 247,668.43

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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.