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Finding the Fourth Proportional to 239,388.93, 330,252 and 157,611.69

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Solution

The fourth proportional to 239,388.93, 330,252 and 157,611.69 is: 217,435.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,388.93 : 330,252 = 157,611.69 : x
  2. Step 2: Convert to fraction form
    239,388.93/330,252 = 157,611.69/x
  3. Step 3: Cross multiply
    239,388.93x = 330,252 × 157,611.69
  4. Step 4: Simplify right side
    239,388.93x = 52,051,575,845.88
  5. Step 5: Solve for x
    x = 52,051,575,845.88/239,388.93
  6. Step 6: Final answer
    x = 217,435.18

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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.