Home / 396,795.22-547,581.36-215,510.69

Finding the Fourth Proportional to 396,795.22, 547,581.36 and 215,510.69

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Solution

The fourth proportional to 396,795.22, 547,581.36 and 215,510.69 is: 297,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,795.22 : 547,581.36 = 215,510.69 : x
  2. Step 2: Convert to fraction form
    396,795.22/547,581.36 = 215,510.69/x
  3. Step 3: Cross multiply
    396,795.22x = 547,581.36 × 215,510.69
  4. Step 4: Simplify right side
    396,795.22x = 118,009,636,724.74
  5. Step 5: Solve for x
    x = 118,009,636,724.74/396,795.22
  6. Step 6: Final answer
    x = 297,406.90

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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.