Home / 229,919.55-317,316.60-139,272.86

Finding the Fourth Proportional to 229,919.55, 317,316.60 and 139,272.86

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Solution

The fourth proportional to 229,919.55, 317,316.60 and 139,272.86 is: 192,213.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,919.55 : 317,316.60 = 139,272.86 : x
  2. Step 2: Convert to fraction form
    229,919.55/317,316.60 = 139,272.86/x
  3. Step 3: Cross multiply
    229,919.55x = 317,316.60 × 139,272.86
  4. Step 4: Simplify right side
    229,919.55x = 44,193,589,343.17
  5. Step 5: Solve for x
    x = 44,193,589,343.17/229,919.55
  6. Step 6: Final answer
    x = 192,213.27

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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.