Home / 307,126.92-423,641.16-211,467.48

Finding the Fourth Proportional to 307,126.92, 423,641.16 and 211,467.48

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Solution

The fourth proportional to 307,126.92, 423,641.16 and 211,467.48 is: 291,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,126.92 : 423,641.16 = 211,467.48 : x
  2. Step 2: Convert to fraction form
    307,126.92/423,641.16 = 211,467.48/x
  3. Step 3: Cross multiply
    307,126.92x = 423,641.16 × 211,467.48
  4. Step 4: Simplify right side
    307,126.92x = 89,586,328,529.48
  5. Step 5: Solve for x
    x = 89,586,328,529.48/307,126.92
  6. Step 6: Final answer
    x = 291,691.55

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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.