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Finding the Fourth Proportional to 395,668.16, 546,211.28 and 225,869.48

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Solution

The fourth proportional to 395,668.16, 546,211.28 and 225,869.48 is: 311,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,668.16 : 546,211.28 = 225,869.48 : x
  2. Step 2: Convert to fraction form
    395,668.16/546,211.28 = 225,869.48/x
  3. Step 3: Cross multiply
    395,668.16x = 546,211.28 × 225,869.48
  4. Step 4: Simplify right side
    395,668.16x = 123,372,457,783.73
  5. Step 5: Solve for x
    x = 123,372,457,783.73/395,668.16
  6. Step 6: Final answer
    x = 311,807.90

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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.