Home / 259,979.05-389,710.24-180,927.20

Finding the Fourth Proportional to 259,979.05, 389,710.24 and 180,927.20

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Solution

The fourth proportional to 259,979.05, 389,710.24 and 180,927.20 is: 271,211.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,979.05 : 389,710.24 = 180,927.20 : x
  2. Step 2: Convert to fraction form
    259,979.05/389,710.24 = 180,927.20/x
  3. Step 3: Cross multiply
    259,979.05x = 389,710.24 × 180,927.20
  4. Step 4: Simplify right side
    259,979.05x = 70,509,183,056.49
  5. Step 5: Solve for x
    x = 70,509,183,056.49/259,979.05
  6. Step 6: Final answer
    x = 271,211.02

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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.