Home / 396,983.45-547,830.51-215,698.16

Finding the Fourth Proportional to 396,983.45, 547,830.51 and 215,698.16

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Solution

The fourth proportional to 396,983.45, 547,830.51 and 215,698.16 is: 297,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,983.45 : 547,830.51 = 215,698.16 : x
  2. Step 2: Convert to fraction form
    396,983.45/547,830.51 = 215,698.16/x
  3. Step 3: Cross multiply
    396,983.45x = 547,830.51 × 215,698.16
  4. Step 4: Simplify right side
    396,983.45x = 118,166,030,259.71
  5. Step 5: Solve for x
    x = 118,166,030,259.71/396,983.45
  6. Step 6: Final answer
    x = 297,659.84

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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.