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Finding the Fourth Proportional to 252,969.54, 349,084.23 and 139,785

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Solution

The fourth proportional to 252,969.54, 349,084.23 and 139,785 is: 192,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,969.54 : 349,084.23 = 139,785 : x
  2. Step 2: Convert to fraction form
    252,969.54/349,084.23 = 139,785/x
  3. Step 3: Cross multiply
    252,969.54x = 349,084.23 × 139,785
  4. Step 4: Simplify right side
    252,969.54x = 48,796,739,090.55
  5. Step 5: Solve for x
    x = 48,796,739,090.55/252,969.54
  6. Step 6: Final answer
    x = 192,895.71

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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.