Home / 439,196.13-658,859.76-139,686.48

Finding the Fourth Proportional to 439,196.13, 658,859.76 and 139,686.48

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Solution

The fourth proportional to 439,196.13, 658,859.76 and 139,686.48 is: 209,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,196.13 : 658,859.76 = 139,686.48 : x
  2. Step 2: Convert to fraction form
    439,196.13/658,859.76 = 139,686.48/x
  3. Step 3: Cross multiply
    439,196.13x = 658,859.76 × 139,686.48
  4. Step 4: Simplify right side
    439,196.13x = 92,033,800,688.04
  5. Step 5: Solve for x
    x = 92,033,800,688.04/439,196.13
  6. Step 6: Final answer
    x = 209,550.57

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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.