Home / 259,946.10-389,919.15-158,906.70

Finding the Fourth Proportional to 259,946.10, 389,919.15 and 158,906.70

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Solution

The fourth proportional to 259,946.10, 389,919.15 and 158,906.70 is: 238,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,946.10 : 389,919.15 = 158,906.70 : x
  2. Step 2: Convert to fraction form
    259,946.10/389,919.15 = 158,906.70/x
  3. Step 3: Cross multiply
    259,946.10x = 389,919.15 × 158,906.70
  4. Step 4: Simplify right side
    259,946.10x = 61,960,765,393.31
  5. Step 5: Solve for x
    x = 61,960,765,393.31/259,946.10
  6. Step 6: Final answer
    x = 238,360.05

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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.