Home / 266,529.48-399,992.22-126,288.60

Finding the Fourth Proportional to 266,529.48, 399,992.22 and 126,288.60

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Solution

The fourth proportional to 266,529.48, 399,992.22 and 126,288.60 is: 189,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,529.48 : 399,992.22 = 126,288.60 : x
  2. Step 2: Convert to fraction form
    266,529.48/399,992.22 = 126,288.60/x
  3. Step 3: Cross multiply
    266,529.48x = 399,992.22 × 126,288.60
  4. Step 4: Simplify right side
    266,529.48x = 50,514,457,474.69
  5. Step 5: Solve for x
    x = 50,514,457,474.69/266,529.48
  6. Step 6: Final answer
    x = 189,526.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.