Home / 409,074.02-613,638.98-139,092.24

Finding the Fourth Proportional to 409,074.02, 613,638.98 and 139,092.24

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Solution

The fourth proportional to 409,074.02, 613,638.98 and 139,092.24 is: 208,647.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,074.02 : 613,638.98 = 139,092.24 : x
  2. Step 2: Convert to fraction form
    409,074.02/613,638.98 = 139,092.24/x
  3. Step 3: Cross multiply
    409,074.02x = 613,638.98 × 139,092.24
  4. Step 4: Simplify right side
    409,074.02x = 85,352,420,627.25
  5. Step 5: Solve for x
    x = 85,352,420,627.25/409,074.02
  6. Step 6: Final answer
    x = 208,647.87

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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.