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Finding the Fourth Proportional to 247,383.12, 341,388.74 and 139,950.92

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Solution

The fourth proportional to 247,383.12, 341,388.74 and 139,950.92 is: 193,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,383.12 : 341,388.74 = 139,950.92 : x
  2. Step 2: Convert to fraction form
    247,383.12/341,388.74 = 139,950.92/x
  3. Step 3: Cross multiply
    247,383.12x = 341,388.74 × 139,950.92
  4. Step 4: Simplify right side
    247,383.12x = 47,777,668,240.64
  5. Step 5: Solve for x
    x = 47,777,668,240.64/247,383.12
  6. Step 6: Final answer
    x = 193,132.29

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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.