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Finding the Fourth Proportional to 395,556, 545,869.92 and 214,267.94

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Solution

The fourth proportional to 395,556, 545,869.92 and 214,267.94 is: 295,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,556 : 545,869.92 = 214,267.94 : x
  2. Step 2: Convert to fraction form
    395,556/545,869.92 = 214,267.94/x
  3. Step 3: Cross multiply
    395,556x = 545,869.92 × 214,267.94
  4. Step 4: Simplify right side
    395,556x = 116,962,423,266.37
  5. Step 5: Solve for x
    x = 116,962,423,266.37/395,556
  6. Step 6: Final answer
    x = 295,691.19

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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.