Home / 260,067.18-358,889.90-143,780.16

Finding the Fourth Proportional to 260,067.18, 358,889.90 and 143,780.16

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Solution

The fourth proportional to 260,067.18, 358,889.90 and 143,780.16 is: 198,415.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,067.18 : 358,889.90 = 143,780.16 : x
  2. Step 2: Convert to fraction form
    260,067.18/358,889.90 = 143,780.16/x
  3. Step 3: Cross multiply
    260,067.18x = 358,889.90 × 143,780.16
  4. Step 4: Simplify right side
    260,067.18x = 51,601,247,244.38
  5. Step 5: Solve for x
    x = 51,601,247,244.38/260,067.18
  6. Step 6: Final answer
    x = 198,415.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.