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Finding the Fourth Proportional to 269,649.51, 372,115.89 and 148,790.70

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Solution

The fourth proportional to 269,649.51, 372,115.89 and 148,790.70 is: 205,330.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,649.51 : 372,115.89 = 148,790.70 : x
  2. Step 2: Convert to fraction form
    269,649.51/372,115.89 = 148,790.70/x
  3. Step 3: Cross multiply
    269,649.51x = 372,115.89 × 148,790.70
  4. Step 4: Simplify right side
    269,649.51x = 55,367,383,754.22
  5. Step 5: Solve for x
    x = 55,367,383,754.22/269,649.51
  6. Step 6: Final answer
    x = 205,330.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.