Home / 259,590.16-389,426.41-109,831.57

Finding the Fourth Proportional to 259,590.16, 389,426.41 and 109,831.57

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Solution

The fourth proportional to 259,590.16, 389,426.41 and 109,831.57 is: 164,764.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,590.16 : 389,426.41 = 109,831.57 : x
  2. Step 2: Convert to fraction form
    259,590.16/389,426.41 = 109,831.57/x
  3. Step 3: Cross multiply
    259,590.16x = 389,426.41 × 109,831.57
  4. Step 4: Simplify right side
    259,590.16x = 42,771,313,959.85
  5. Step 5: Solve for x
    x = 42,771,313,959.85/259,590.16
  6. Step 6: Final answer
    x = 164,764.77

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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.