Home / 424,924.44-637,455.24-172,220.64

Finding the Fourth Proportional to 424,924.44, 637,455.24 and 172,220.64

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Solution

The fourth proportional to 424,924.44, 637,455.24 and 172,220.64 is: 258,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,924.44 : 637,455.24 = 172,220.64 : x
  2. Step 2: Convert to fraction form
    424,924.44/637,455.24 = 172,220.64/x
  3. Step 3: Cross multiply
    424,924.44x = 637,455.24 × 172,220.64
  4. Step 4: Simplify right side
    424,924.44x = 109,782,949,404.15
  5. Step 5: Solve for x
    x = 109,782,949,404.15/424,924.44
  6. Step 6: Final answer
    x = 258,358.76

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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.