Home / 296,829.83-445,245.66-72,190.31

Finding the Fourth Proportional to 296,829.83, 445,245.66 and 72,190.31

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Solution

The fourth proportional to 296,829.83, 445,245.66 and 72,190.31 is: 108,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,829.83 : 445,245.66 = 72,190.31 : x
  2. Step 2: Convert to fraction form
    296,829.83/445,245.66 = 72,190.31/x
  3. Step 3: Cross multiply
    296,829.83x = 445,245.66 × 72,190.31
  4. Step 4: Simplify right side
    296,829.83x = 32,142,422,221.55
  5. Step 5: Solve for x
    x = 32,142,422,221.55/296,829.83
  6. Step 6: Final answer
    x = 108,285.69

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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.