Home / 247,197.48-341,150-139,768.56

Finding the Fourth Proportional to 247,197.48, 341,150 and 139,768.56

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Solution

The fourth proportional to 247,197.48, 341,150 and 139,768.56 is: 192,890.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,197.48 : 341,150 = 139,768.56 : x
  2. Step 2: Convert to fraction form
    247,197.48/341,150 = 139,768.56/x
  3. Step 3: Cross multiply
    247,197.48x = 341,150 × 139,768.56
  4. Step 4: Simplify right side
    247,197.48x = 47,682,044,244
  5. Step 5: Solve for x
    x = 47,682,044,244/247,197.48
  6. Step 6: Final answer
    x = 192,890.49

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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.