Home / 339,930.06-469,140.22-212,646.66

Finding the Fourth Proportional to 339,930.06, 469,140.22 and 212,646.66

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Solution

The fourth proportional to 339,930.06, 469,140.22 and 212,646.66 is: 293,475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,930.06 : 469,140.22 = 212,646.66 : x
  2. Step 2: Convert to fraction form
    339,930.06/469,140.22 = 212,646.66/x
  3. Step 3: Cross multiply
    339,930.06x = 469,140.22 × 212,646.66
  4. Step 4: Simplify right side
    339,930.06x = 99,761,100,854.67
  5. Step 5: Solve for x
    x = 99,761,100,854.67/339,930.06
  6. Step 6: Final answer
    x = 293,475.37

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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.