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Finding the Fourth Proportional to 266,351.60, 367,222.20 and 189,957.80

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Solution

The fourth proportional to 266,351.60, 367,222.20 and 189,957.80 is: 261,897.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,351.60 : 367,222.20 = 189,957.80 : x
  2. Step 2: Convert to fraction form
    266,351.60/367,222.20 = 189,957.80/x
  3. Step 3: Cross multiply
    266,351.60x = 367,222.20 × 189,957.80
  4. Step 4: Simplify right side
    266,351.60x = 69,756,721,223.16
  5. Step 5: Solve for x
    x = 69,756,721,223.16/266,351.60
  6. Step 6: Final answer
    x = 261,897.14

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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.