Home / 505,515.60-758,273.40-131,538.60

Finding the Fourth Proportional to 505,515.60, 758,273.40 and 131,538.60

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Solution

The fourth proportional to 505,515.60, 758,273.40 and 131,538.60 is: 197,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,515.60 : 758,273.40 = 131,538.60 : x
  2. Step 2: Convert to fraction form
    505,515.60/758,273.40 = 131,538.60/x
  3. Step 3: Cross multiply
    505,515.60x = 758,273.40 × 131,538.60
  4. Step 4: Simplify right side
    505,515.60x = 99,742,221,453.24
  5. Step 5: Solve for x
    x = 99,742,221,453.24/505,515.60
  6. Step 6: Final answer
    x = 197,307.90

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Similar ratio
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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.