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Finding the Fourth Proportional to 266,692, 367,720.50 and 215,546.58

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Solution

The fourth proportional to 266,692, 367,720.50 and 215,546.58 is: 297,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,692 : 367,720.50 = 215,546.58 : x
  2. Step 2: Convert to fraction form
    266,692/367,720.50 = 215,546.58/x
  3. Step 3: Cross multiply
    266,692x = 367,720.50 × 215,546.58
  4. Step 4: Simplify right side
    266,692x = 79,260,896,170.89
  5. Step 5: Solve for x
    x = 79,260,896,170.89/266,692
  6. Step 6: Final answer
    x = 297,200.13

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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.