Home / 203,235.58-280,461.30-122,666.50

Finding the Fourth Proportional to 203,235.58, 280,461.30 and 122,666.50

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Solution

The fourth proportional to 203,235.58, 280,461.30 and 122,666.50 is: 169,277.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,235.58 : 280,461.30 = 122,666.50 : x
  2. Step 2: Convert to fraction form
    203,235.58/280,461.30 = 122,666.50/x
  3. Step 3: Cross multiply
    203,235.58x = 280,461.30 × 122,666.50
  4. Step 4: Simplify right side
    203,235.58x = 34,403,204,654.14
  5. Step 5: Solve for x
    x = 34,403,204,654.14/203,235.58
  6. Step 6: Final answer
    x = 169,277.47

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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.