Home / 266,619.56-367,920.09-145,736.78

Finding the Fourth Proportional to 266,619.56, 367,920.09 and 145,736.78

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Solution

The fourth proportional to 266,619.56, 367,920.09 and 145,736.78 is: 201,108.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,619.56 : 367,920.09 = 145,736.78 : x
  2. Step 2: Convert to fraction form
    266,619.56/367,920.09 = 145,736.78/x
  3. Step 3: Cross multiply
    266,619.56x = 367,920.09 × 145,736.78
  4. Step 4: Simplify right side
    266,619.56x = 53,619,487,374.31
  5. Step 5: Solve for x
    x = 53,619,487,374.31/266,619.56
  6. Step 6: Final answer
    x = 201,108.61

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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.