Home / 259,923.41-389,898.88-72,949.49

Finding the Fourth Proportional to 259,923.41, 389,898.88 and 72,949.49

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Solution

The fourth proportional to 259,923.41, 389,898.88 and 72,949.49 is: 109,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,923.41 : 389,898.88 = 72,949.49 : x
  2. Step 2: Convert to fraction form
    259,923.41/389,898.88 = 72,949.49/x
  3. Step 3: Cross multiply
    259,923.41x = 389,898.88 × 72,949.49
  4. Step 4: Simplify right side
    259,923.41x = 28,442,922,498.08
  5. Step 5: Solve for x
    x = 28,442,922,498.08/259,923.41
  6. Step 6: Final answer
    x = 109,428.09

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1.5x scale

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.