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Finding the Fourth Proportional to 236,713.52, 326,663 and 129,283.60

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Solution

The fourth proportional to 236,713.52, 326,663 and 129,283.60 is: 178,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,713.52 : 326,663 = 129,283.60 : x
  2. Step 2: Convert to fraction form
    236,713.52/326,663 = 129,283.60/x
  3. Step 3: Cross multiply
    236,713.52x = 326,663 × 129,283.60
  4. Step 4: Simplify right side
    236,713.52x = 42,232,168,626.80
  5. Step 5: Solve for x
    x = 42,232,168,626.80/236,713.52
  6. Step 6: Final answer
    x = 178,410.46

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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.