Home / 255,355.20-352,376.40-140,611.68

Finding the Fourth Proportional to 255,355.20, 352,376.40 and 140,611.68

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Solution

The fourth proportional to 255,355.20, 352,376.40 and 140,611.68 is: 194,036.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,355.20 : 352,376.40 = 140,611.68 : x
  2. Step 2: Convert to fraction form
    255,355.20/352,376.40 = 140,611.68/x
  3. Step 3: Cross multiply
    255,355.20x = 352,376.40 × 140,611.68
  4. Step 4: Simplify right side
    255,355.20x = 49,548,237,596.35
  5. Step 5: Solve for x
    x = 49,548,237,596.35/255,355.20
  6. Step 6: Final answer
    x = 194,036.53

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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.