Home / 255,508.32-352,601.82-139,221.18

Finding the Fourth Proportional to 255,508.32, 352,601.82 and 139,221.18

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Solution

The fourth proportional to 255,508.32, 352,601.82 and 139,221.18 is: 192,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,508.32 : 352,601.82 = 139,221.18 : x
  2. Step 2: Convert to fraction form
    255,508.32/352,601.82 = 139,221.18/x
  3. Step 3: Cross multiply
    255,508.32x = 352,601.82 × 139,221.18
  4. Step 4: Simplify right side
    255,508.32x = 49,089,641,450.55
  5. Step 5: Solve for x
    x = 49,089,641,450.55/255,508.32
  6. Step 6: Final answer
    x = 192,125.41

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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.