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Finding the Fourth Proportional to 511,005.58, 766,600.77 and 211,323.46

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Solution

The fourth proportional to 511,005.58, 766,600.77 and 211,323.46 is: 317,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,005.58 : 766,600.77 = 211,323.46 : x
  2. Step 2: Convert to fraction form
    511,005.58/766,600.77 = 211,323.46/x
  3. Step 3: Cross multiply
    511,005.58x = 766,600.77 × 211,323.46
  4. Step 4: Simplify right side
    511,005.58x = 162,000,727,155.06
  5. Step 5: Solve for x
    x = 162,000,727,155.06/511,005.58
  6. Step 6: Final answer
    x = 317,023.40

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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.