Home / 206,258.23-309,387.59-56,499.81

Finding the Fourth Proportional to 206,258.23, 309,387.59 and 56,499.81

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Solution

The fourth proportional to 206,258.23, 309,387.59 and 56,499.81 is: 84,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,258.23 : 309,387.59 = 56,499.81 : x
  2. Step 2: Convert to fraction form
    206,258.23/309,387.59 = 56,499.81/x
  3. Step 3: Cross multiply
    206,258.23x = 309,387.59 × 56,499.81
  4. Step 4: Simplify right side
    206,258.23x = 17,480,338,608.66
  5. Step 5: Solve for x
    x = 17,480,338,608.66/206,258.23
  6. Step 6: Final answer
    x = 84,749.78

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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.