Home / 511,186.16-766,917.28-156,190.48

Finding the Fourth Proportional to 511,186.16, 766,917.28 and 156,190.48

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Solution

The fourth proportional to 511,186.16, 766,917.28 and 156,190.48 is: 234,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,186.16 : 766,917.28 = 156,190.48 : x
  2. Step 2: Convert to fraction form
    511,186.16/766,917.28 = 156,190.48/x
  3. Step 3: Cross multiply
    511,186.16x = 766,917.28 × 156,190.48
  4. Step 4: Simplify right side
    511,186.16x = 119,785,178,083.49
  5. Step 5: Solve for x
    x = 119,785,178,083.49/511,186.16
  6. Step 6: Final answer
    x = 234,327.90

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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.