Home / 259,814.24-389,746.20-72,825.20

Finding the Fourth Proportional to 259,814.24, 389,746.20 and 72,825.20

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Solution

The fourth proportional to 259,814.24, 389,746.20 and 72,825.20 is: 109,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,814.24 : 389,746.20 = 72,825.20 : x
  2. Step 2: Convert to fraction form
    259,814.24/389,746.20 = 72,825.20/x
  3. Step 3: Cross multiply
    259,814.24x = 389,746.20 × 72,825.20
  4. Step 4: Simplify right side
    259,814.24x = 28,383,343,015.51
  5. Step 5: Solve for x
    x = 28,383,343,015.51/259,814.24
  6. Step 6: Final answer
    x = 109,244.76

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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.