Home / 306,837.54-423,217.68-204,811.56

Finding the Fourth Proportional to 306,837.54, 423,217.68 and 204,811.56

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Solution

The fourth proportional to 306,837.54, 423,217.68 and 204,811.56 is: 282,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,837.54 : 423,217.68 = 204,811.56 : x
  2. Step 2: Convert to fraction form
    306,837.54/423,217.68 = 204,811.56/x
  3. Step 3: Cross multiply
    306,837.54x = 423,217.68 × 204,811.56
  4. Step 4: Simplify right side
    306,837.54x = 86,679,870,120.23
  5. Step 5: Solve for x
    x = 86,679,870,120.23/306,837.54
  6. Step 6: Final answer
    x = 282,494.35

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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.