Home / 420,171.20-579,848.48-229,196.96

Finding the Fourth Proportional to 420,171.20, 579,848.48 and 229,196.96

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Solution

The fourth proportional to 420,171.20, 579,848.48 and 229,196.96 is: 316,298.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,171.20 : 579,848.48 = 229,196.96 : x
  2. Step 2: Convert to fraction form
    420,171.20/579,848.48 = 229,196.96/x
  3. Step 3: Cross multiply
    420,171.20x = 579,848.48 × 229,196.96
  4. Step 4: Simplify right side
    420,171.20x = 132,899,508,876.62
  5. Step 5: Solve for x
    x = 132,899,508,876.62/420,171.20
  6. Step 6: Final answer
    x = 316,298.47

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1.5x scale

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.