Home / 321,455.32-482,215.38-84,814.36

Finding the Fourth Proportional to 321,455.32, 482,215.38 and 84,814.36

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Solution

The fourth proportional to 321,455.32, 482,215.38 and 84,814.36 is: 127,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,455.32 : 482,215.38 = 84,814.36 : x
  2. Step 2: Convert to fraction form
    321,455.32/482,215.38 = 84,814.36/x
  3. Step 3: Cross multiply
    321,455.32x = 482,215.38 × 84,814.36
  4. Step 4: Simplify right side
    321,455.32x = 40,898,788,836.86
  5. Step 5: Solve for x
    x = 40,898,788,836.86/321,455.32
  6. Step 6: Final answer
    x = 127,230.09

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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.