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Finding the Fourth Proportional to 222,302.61, 306,806.81 and 126,787.41

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Solution

The fourth proportional to 222,302.61, 306,806.81 and 126,787.41 is: 174,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,302.61 : 306,806.81 = 126,787.41 : x
  2. Step 2: Convert to fraction form
    222,302.61/306,806.81 = 126,787.41/x
  3. Step 3: Cross multiply
    222,302.61x = 306,806.81 × 126,787.41
  4. Step 4: Simplify right side
    222,302.61x = 38,899,240,810.26
  5. Step 5: Solve for x
    x = 38,899,240,810.26/222,302.61
  6. Step 6: Final answer
    x = 174,983.28

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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.