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Finding the Fourth Proportional to 374,502.36, 561,698.25 and 137,789.98

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Solution

The fourth proportional to 374,502.36, 561,698.25 and 137,789.98 is: 206,664.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,502.36 : 561,698.25 = 137,789.98 : x
  2. Step 2: Convert to fraction form
    374,502.36/561,698.25 = 137,789.98/x
  3. Step 3: Cross multiply
    374,502.36x = 561,698.25 × 137,789.98
  4. Step 4: Simplify right side
    374,502.36x = 77,396,390,633.54
  5. Step 5: Solve for x
    x = 77,396,390,633.54/374,502.36
  6. Step 6: Final answer
    x = 206,664.63

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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.