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Finding the Fourth Proportional to 294,235.30, 441,007.35 and 136,129.78

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Solution

The fourth proportional to 294,235.30, 441,007.35 and 136,129.78 is: 204,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,235.30 : 441,007.35 = 136,129.78 : x
  2. Step 2: Convert to fraction form
    294,235.30/441,007.35 = 136,129.78/x
  3. Step 3: Cross multiply
    294,235.30x = 441,007.35 × 136,129.78
  4. Step 4: Simplify right side
    294,235.30x = 60,034,233,533.88
  5. Step 5: Solve for x
    x = 60,034,233,533.88/294,235.30
  6. Step 6: Final answer
    x = 204,034.78

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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.