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Finding the Fourth Proportional to 374,467.45, 561,645.81 and 137,754.77

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Solution

The fourth proportional to 374,467.45, 561,645.81 and 137,754.77 is: 206,611.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,467.45 : 561,645.81 = 137,754.77 : x
  2. Step 2: Convert to fraction form
    374,467.45/561,645.81 = 137,754.77/x
  3. Step 3: Cross multiply
    374,467.45x = 561,645.81 × 137,754.77
  4. Step 4: Simplify right side
    374,467.45x = 77,369,390,437.74
  5. Step 5: Solve for x
    x = 77,369,390,437.74/374,467.45
  6. Step 6: Final answer
    x = 206,611.79

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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.