Home / 685,165.16-1,027,889.57-205,373.58

Finding the Fourth Proportional to 685,165.16, 1,027,889.57 and 205,373.58

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Solution

The fourth proportional to 685,165.16, 1,027,889.57 and 205,373.58 is: 308,102.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,165.16 : 1,027,889.57 = 205,373.58 : x
  2. Step 2: Convert to fraction form
    685,165.16/1,027,889.57 = 205,373.58/x
  3. Step 3: Cross multiply
    685,165.16x = 1,027,889.57 × 205,373.58
  4. Step 4: Simplify right side
    685,165.16x = 211,101,361,253.21
  5. Step 5: Solve for x
    x = 211,101,361,253.21/685,165.16
  6. Step 6: Final answer
    x = 308,102.88

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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.