Home / 259,979.71-389,711.22-180,927.86

Finding the Fourth Proportional to 259,979.71, 389,711.22 and 180,927.86

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Solution

The fourth proportional to 259,979.71, 389,711.22 and 180,927.86 is: 271,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,979.71 : 389,711.22 = 180,927.86 : x
  2. Step 2: Convert to fraction form
    259,979.71/389,711.22 = 180,927.86/x
  3. Step 3: Cross multiply
    259,979.71x = 389,711.22 × 180,927.86
  4. Step 4: Simplify right side
    259,979.71x = 70,509,617,052.59
  5. Step 5: Solve for x
    x = 70,509,617,052.59/259,979.71
  6. Step 6: Final answer
    x = 271,212.00

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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.