Home / 266,814.40-368,203.75-145,955.65

Finding the Fourth Proportional to 266,814.40, 368,203.75 and 145,955.65

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Solution

The fourth proportional to 266,814.40, 368,203.75 and 145,955.65 is: 201,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,814.40 : 368,203.75 = 145,955.65 : x
  2. Step 2: Convert to fraction form
    266,814.40/368,203.75 = 145,955.65/x
  3. Step 3: Cross multiply
    266,814.40x = 368,203.75 × 145,955.65
  4. Step 4: Simplify right side
    266,814.40x = 53,741,418,311.83
  5. Step 5: Solve for x
    x = 53,741,418,311.83/266,814.40
  6. Step 6: Final answer
    x = 201,418.73

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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.