Home / 297,206.24-445,840.52-128,743.64

Finding the Fourth Proportional to 297,206.24, 445,840.52 and 128,743.64

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Solution

The fourth proportional to 297,206.24, 445,840.52 and 128,743.64 is: 193,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,206.24 : 445,840.52 = 128,743.64 : x
  2. Step 2: Convert to fraction form
    297,206.24/445,840.52 = 128,743.64/x
  3. Step 3: Cross multiply
    297,206.24x = 445,840.52 × 128,743.64
  4. Step 4: Simplify right side
    297,206.24x = 57,399,131,404.29
  5. Step 5: Solve for x
    x = 57,399,131,404.29/297,206.24
  6. Step 6: Final answer
    x = 193,128.96

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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.