Home / 396,109.84-546,631.86-214,821.76

Finding the Fourth Proportional to 396,109.84, 546,631.86 and 214,821.76

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Solution

The fourth proportional to 396,109.84, 546,631.86 and 214,821.76 is: 296,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,109.84 : 546,631.86 = 214,821.76 : x
  2. Step 2: Convert to fraction form
    396,109.84/546,631.86 = 214,821.76/x
  3. Step 3: Cross multiply
    396,109.84x = 546,631.86 × 214,821.76
  4. Step 4: Simplify right side
    396,109.84x = 117,428,418,237.27
  5. Step 5: Solve for x
    x = 117,428,418,237.27/396,109.84
  6. Step 6: Final answer
    x = 296,454.18

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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.