Home / 282,388.06-389,697.65-161,521.89

Finding the Fourth Proportional to 282,388.06, 389,697.65 and 161,521.89

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Solution

The fourth proportional to 282,388.06, 389,697.65 and 161,521.89 is: 222,901.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,388.06 : 389,697.65 = 161,521.89 : x
  2. Step 2: Convert to fraction form
    282,388.06/389,697.65 = 161,521.89/x
  3. Step 3: Cross multiply
    282,388.06x = 389,697.65 × 161,521.89
  4. Step 4: Simplify right side
    282,388.06x = 62,944,700,956.56
  5. Step 5: Solve for x
    x = 62,944,700,956.56/282,388.06
  6. Step 6: Final answer
    x = 222,901.42

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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.