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Finding the Fourth Proportional to 395,354.99, 545,587.59 and 214,063.17

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Solution

The fourth proportional to 395,354.99, 545,587.59 and 214,063.17 is: 295,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,354.99 : 545,587.59 = 214,063.17 : x
  2. Step 2: Convert to fraction form
    395,354.99/545,587.59 = 214,063.17/x
  3. Step 3: Cross multiply
    395,354.99x = 545,587.59 × 214,063.17
  4. Step 4: Simplify right side
    395,354.99x = 116,790,209,028.06
  5. Step 5: Solve for x
    x = 116,790,209,028.06/395,354.99
  6. Step 6: Final answer
    x = 295,405.93

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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.