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Finding the Fourth Proportional to 247,212.75, 341,151.71 and 139,786.62

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Solution

The fourth proportional to 247,212.75, 341,151.71 and 139,786.62 is: 192,904.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,212.75 : 341,151.71 = 139,786.62 : x
  2. Step 2: Convert to fraction form
    247,212.75/341,151.71 = 139,786.62/x
  3. Step 3: Cross multiply
    247,212.75x = 341,151.71 × 139,786.62
  4. Step 4: Simplify right side
    247,212.75x = 47,688,444,448.12
  5. Step 5: Solve for x
    x = 47,688,444,448.12/247,212.75
  6. Step 6: Final answer
    x = 192,904.47

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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.