Home / 340,249.25-510,030.78-213,979.73

Finding the Fourth Proportional to 340,249.25, 510,030.78 and 213,979.73

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Solution

The fourth proportional to 340,249.25, 510,030.78 and 213,979.73 is: 320,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,249.25 : 510,030.78 = 213,979.73 : x
  2. Step 2: Convert to fraction form
    340,249.25/510,030.78 = 213,979.73/x
  3. Step 3: Cross multiply
    340,249.25x = 510,030.78 × 213,979.73
  4. Step 4: Simplify right side
    340,249.25x = 109,136,246,045.94
  5. Step 5: Solve for x
    x = 109,136,246,045.94/340,249.25
  6. Step 6: Final answer
    x = 320,753.82

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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.