Home / 297,175.15-445,830.72-128,723.52

Finding the Fourth Proportional to 297,175.15, 445,830.72 and 128,723.52

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Solution

The fourth proportional to 297,175.15, 445,830.72 and 128,723.52 is: 193,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,175.15 : 445,830.72 = 128,723.52 : x
  2. Step 2: Convert to fraction form
    297,175.15/445,830.72 = 128,723.52/x
  3. Step 3: Cross multiply
    297,175.15x = 445,830.72 × 128,723.52
  4. Step 4: Simplify right side
    297,175.15x = 57,388,899,602.53
  5. Step 5: Solve for x
    x = 57,388,899,602.53/297,175.15
  6. Step 6: Final answer
    x = 193,114.73

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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.