Home / 247,115.49-341,024.63-139,679.12

Finding the Fourth Proportional to 247,115.49, 341,024.63 and 139,679.12

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Solution

The fourth proportional to 247,115.49, 341,024.63 and 139,679.12 is: 192,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,115.49 : 341,024.63 = 139,679.12 : x
  2. Step 2: Convert to fraction form
    247,115.49/341,024.63 = 139,679.12/x
  3. Step 3: Cross multiply
    247,115.49x = 341,024.63 × 139,679.12
  4. Step 4: Simplify right side
    247,115.49x = 47,634,017,813.21
  5. Step 5: Solve for x
    x = 47,634,017,813.21/247,115.49
  6. Step 6: Final answer
    x = 192,760.15

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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.