Home / 338,943.69-507,890.39-214,022.25

Finding the Fourth Proportional to 338,943.69, 507,890.39 and 214,022.25

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Solution

The fourth proportional to 338,943.69, 507,890.39 and 214,022.25 is: 320,701.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,943.69 : 507,890.39 = 214,022.25 : x
  2. Step 2: Convert to fraction form
    338,943.69/507,890.39 = 214,022.25/x
  3. Step 3: Cross multiply
    338,943.69x = 507,890.39 × 214,022.25
  4. Step 4: Simplify right side
    338,943.69x = 108,699,842,951.07
  5. Step 5: Solve for x
    x = 108,699,842,951.07/338,943.69
  6. Step 6: Final answer
    x = 320,701.77

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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.