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Finding the Fourth Proportional to 266,028.51, 398,889.17 and 181,890.57

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Solution

The fourth proportional to 266,028.51, 398,889.17 and 181,890.57 is: 272,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,028.51 : 398,889.17 = 181,890.57 : x
  2. Step 2: Convert to fraction form
    266,028.51/398,889.17 = 181,890.57/x
  3. Step 3: Cross multiply
    266,028.51x = 398,889.17 × 181,890.57
  4. Step 4: Simplify right side
    266,028.51x = 72,554,178,498.13
  5. Step 5: Solve for x
    x = 72,554,178,498.13/266,028.51
  6. Step 6: Final answer
    x = 272,730.84

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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.