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Finding the Fourth Proportional to 247,118, 341,028.08 and 139,681.60

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Solution

The fourth proportional to 247,118, 341,028.08 and 139,681.60 is: 192,763.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,118 : 341,028.08 = 139,681.60 : x
  2. Step 2: Convert to fraction form
    247,118/341,028.08 = 139,681.60/x
  3. Step 3: Cross multiply
    247,118x = 341,028.08 × 139,681.60
  4. Step 4: Simplify right side
    247,118x = 47,635,347,859.33
  5. Step 5: Solve for x
    x = 47,635,347,859.33/247,118
  6. Step 6: Final answer
    x = 192,763.57

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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.