Home / 230,644.35-318,312.05-139,993.20

Finding the Fourth Proportional to 230,644.35, 318,312.05 and 139,993.20

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Solution

The fourth proportional to 230,644.35, 318,312.05 and 139,993.20 is: 193,204.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,644.35 : 318,312.05 = 139,993.20 : x
  2. Step 2: Convert to fraction form
    230,644.35/318,312.05 = 139,993.20/x
  3. Step 3: Cross multiply
    230,644.35x = 318,312.05 × 139,993.20
  4. Step 4: Simplify right side
    230,644.35x = 44,561,521,778.09
  5. Step 5: Solve for x
    x = 44,561,521,778.09/230,644.35
  6. Step 6: Final answer
    x = 193,204.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.