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Finding the Fourth Proportional to 188,299.89, 259,851.44 and 103,411.49

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Solution

The fourth proportional to 188,299.89, 259,851.44 and 103,411.49 is: 142,706.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,299.89 : 259,851.44 = 103,411.49 : x
  2. Step 2: Convert to fraction form
    188,299.89/259,851.44 = 103,411.49/x
  3. Step 3: Cross multiply
    188,299.89x = 259,851.44 × 103,411.49
  4. Step 4: Simplify right side
    188,299.89x = 26,871,623,548.32
  5. Step 5: Solve for x
    x = 26,871,623,548.32/188,299.89
  6. Step 6: Final answer
    x = 142,706.53

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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.