Home / 270,821.39-405,929.52-239,306.72

Finding the Fourth Proportional to 270,821.39, 405,929.52 and 239,306.72

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Solution

The fourth proportional to 270,821.39, 405,929.52 and 239,306.72 is: 358,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,821.39 : 405,929.52 = 239,306.72 : x
  2. Step 2: Convert to fraction form
    270,821.39/405,929.52 = 239,306.72/x
  3. Step 3: Cross multiply
    270,821.39x = 405,929.52 × 239,306.72
  4. Step 4: Simplify right side
    270,821.39x = 97,141,659,952.73
  5. Step 5: Solve for x
    x = 97,141,659,952.73/270,821.39
  6. Step 6: Final answer
    x = 358,692.72

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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.