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Finding the Fourth Proportional to 292,540.80, 438,519.60 and 134,493.60

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Solution

The fourth proportional to 292,540.80, 438,519.60 and 134,493.60 is: 201,606.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,540.80 : 438,519.60 = 134,493.60 : x
  2. Step 2: Convert to fraction form
    292,540.80/438,519.60 = 134,493.60/x
  3. Step 3: Cross multiply
    292,540.80x = 438,519.60 × 134,493.60
  4. Step 4: Simplify right side
    292,540.80x = 58,978,079,674.56
  5. Step 5: Solve for x
    x = 58,978,079,674.56/292,540.80
  6. Step 6: Final answer
    x = 201,606.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.