Home / 245,110.72-338,244.06-149,776.96

Finding the Fourth Proportional to 245,110.72, 338,244.06 and 149,776.96

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Solution

The fourth proportional to 245,110.72, 338,244.06 and 149,776.96 is: 206,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,110.72 : 338,244.06 = 149,776.96 : x
  2. Step 2: Convert to fraction form
    245,110.72/338,244.06 = 149,776.96/x
  3. Step 3: Cross multiply
    245,110.72x = 338,244.06 × 149,776.96
  4. Step 4: Simplify right side
    245,110.72x = 50,661,167,044.86
  5. Step 5: Solve for x
    x = 50,661,167,044.86/245,110.72
  6. Step 6: Final answer
    x = 206,686.87

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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.