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Finding the Fourth Proportional to 266,221.89, 367,401.15 and 145,374.41

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Solution

The fourth proportional to 266,221.89, 367,401.15 and 145,374.41 is: 200,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,221.89 : 367,401.15 = 145,374.41 : x
  2. Step 2: Convert to fraction form
    266,221.89/367,401.15 = 145,374.41/x
  3. Step 3: Cross multiply
    266,221.89x = 367,401.15 × 145,374.41
  4. Step 4: Simplify right side
    266,221.89x = 53,410,726,333.07
  5. Step 5: Solve for x
    x = 53,410,726,333.07/266,221.89
  6. Step 6: Final answer
    x = 200,624.85

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1.5x scale

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.