Home / 511,321.16-766,981.71-156,335.15

Finding the Fourth Proportional to 511,321.16, 766,981.71 and 156,335.15

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Solution

The fourth proportional to 511,321.16, 766,981.71 and 156,335.15 is: 234,502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,321.16 : 766,981.71 = 156,335.15 : x
  2. Step 2: Convert to fraction form
    511,321.16/766,981.71 = 156,335.15/x
  3. Step 3: Cross multiply
    511,321.16x = 766,981.71 × 156,335.15
  4. Step 4: Simplify right side
    511,321.16x = 119,906,196,845.20
  5. Step 5: Solve for x
    x = 119,906,196,845.20/511,321.16
  6. Step 6: Final answer
    x = 234,502.71

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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.