Home / 307,103.25-423,576.90-203,550.18

Finding the Fourth Proportional to 307,103.25, 423,576.90 and 203,550.18

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Solution

The fourth proportional to 307,103.25, 423,576.90 and 203,550.18 is: 280,749.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,103.25 : 423,576.90 = 203,550.18 : x
  2. Step 2: Convert to fraction form
    307,103.25/423,576.90 = 203,550.18/x
  3. Step 3: Cross multiply
    307,103.25x = 423,576.90 × 203,550.18
  4. Step 4: Simplify right side
    307,103.25x = 86,219,154,238.84
  5. Step 5: Solve for x
    x = 86,219,154,238.84/307,103.25
  6. Step 6: Final answer
    x = 280,749.73

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1.5x scale

Why These Related Problems?

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