Home / 247,108.40-341,015.55-139,678.82

Finding the Fourth Proportional to 247,108.40, 341,015.55 and 139,678.82

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Solution

The fourth proportional to 247,108.40, 341,015.55 and 139,678.82 is: 192,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,108.40 : 341,015.55 = 139,678.82 : x
  2. Step 2: Convert to fraction form
    247,108.40/341,015.55 = 139,678.82/x
  3. Step 3: Cross multiply
    247,108.40x = 341,015.55 × 139,678.82
  4. Step 4: Simplify right side
    247,108.40x = 47,632,649,625.65
  5. Step 5: Solve for x
    x = 47,632,649,625.65/247,108.40
  6. Step 6: Final answer
    x = 192,760.14

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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.