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Finding the Fourth Proportional to 239,247.84, 330,169.50 and 137,292

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Solution

The fourth proportional to 239,247.84, 330,169.50 and 137,292 is: 189,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,247.84 : 330,169.50 = 137,292 : x
  2. Step 2: Convert to fraction form
    239,247.84/330,169.50 = 137,292/x
  3. Step 3: Cross multiply
    239,247.84x = 330,169.50 × 137,292
  4. Step 4: Simplify right side
    239,247.84x = 45,329,630,994
  5. Step 5: Solve for x
    x = 45,329,630,994/239,247.84
  6. Step 6: Final answer
    x = 189,467.25

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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.