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Finding the Fourth Proportional to 395,475.38, 545,755.83 and 214,187.29

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Solution

The fourth proportional to 395,475.38, 545,755.83 and 214,187.29 is: 295,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,475.38 : 545,755.83 = 214,187.29 : x
  2. Step 2: Convert to fraction form
    395,475.38/545,755.83 = 214,187.29/x
  3. Step 3: Cross multiply
    395,475.38x = 545,755.83 × 214,187.29
  4. Step 4: Simplify right side
    395,475.38x = 116,893,960,061.81
  5. Step 5: Solve for x
    x = 116,893,960,061.81/395,475.38
  6. Step 6: Final answer
    x = 295,578.35

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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.