Home / 259,711.71-389,636.66-82,222.35

Finding the Fourth Proportional to 259,711.71, 389,636.66 and 82,222.35

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Solution

The fourth proportional to 259,711.71, 389,636.66 and 82,222.35 is: 123,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,711.71 : 389,636.66 = 82,222.35 : x
  2. Step 2: Convert to fraction form
    259,711.71/389,636.66 = 82,222.35/x
  3. Step 3: Cross multiply
    259,711.71x = 389,636.66 × 82,222.35
  4. Step 4: Simplify right side
    259,711.71x = 32,036,841,831.35
  5. Step 5: Solve for x
    x = 32,036,841,831.35/259,711.71
  6. Step 6: Final answer
    x = 123,355.40

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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.