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Finding the Fourth Proportional to 266,575.40, 367,883.88 and 145,724.76

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Solution

The fourth proportional to 266,575.40, 367,883.88 and 145,724.76 is: 201,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,575.40 : 367,883.88 = 145,724.76 : x
  2. Step 2: Convert to fraction form
    266,575.40/367,883.88 = 145,724.76/x
  3. Step 3: Cross multiply
    266,575.40x = 367,883.88 × 145,724.76
  4. Step 4: Simplify right side
    266,575.40x = 53,609,790,120.87
  5. Step 5: Solve for x
    x = 53,609,790,120.87/266,575.40
  6. Step 6: Final answer
    x = 201,105.54

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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.