Home / 324,192.78-486,312.53-124,513.18

Finding the Fourth Proportional to 324,192.78, 486,312.53 and 124,513.18

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Solution

The fourth proportional to 324,192.78, 486,312.53 and 124,513.18 is: 186,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,192.78 : 486,312.53 = 124,513.18 : x
  2. Step 2: Convert to fraction form
    324,192.78/486,312.53 = 124,513.18/x
  3. Step 3: Cross multiply
    324,192.78x = 486,312.53 × 124,513.18
  4. Step 4: Simplify right side
    324,192.78x = 60,552,317,745.80
  5. Step 5: Solve for x
    x = 60,552,317,745.80/324,192.78
  6. Step 6: Final answer
    x = 186,778.74

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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.