Home / 456,138.12-683,542.87-219,204.01

Finding the Fourth Proportional to 456,138.12, 683,542.87 and 219,204.01

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Solution

The fourth proportional to 456,138.12, 683,542.87 and 219,204.01 is: 328,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,138.12 : 683,542.87 = 219,204.01 : x
  2. Step 2: Convert to fraction form
    456,138.12/683,542.87 = 219,204.01/x
  3. Step 3: Cross multiply
    456,138.12x = 683,542.87 × 219,204.01
  4. Step 4: Simplify right side
    456,138.12x = 149,835,338,110.91
  5. Step 5: Solve for x
    x = 149,835,338,110.91/456,138.12
  6. Step 6: Final answer
    x = 328,486.77

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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.