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Finding the Fourth Proportional to 239,556.87, 330,587.82 and 137,588.94

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Solution

The fourth proportional to 239,556.87, 330,587.82 and 137,588.94 is: 189,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,556.87 : 330,587.82 = 137,588.94 : x
  2. Step 2: Convert to fraction form
    239,556.87/330,587.82 = 137,588.94/x
  3. Step 3: Cross multiply
    239,556.87x = 330,587.82 × 137,588.94
  4. Step 4: Simplify right side
    239,556.87x = 45,485,227,730.71
  5. Step 5: Solve for x
    x = 45,485,227,730.71/239,556.87
  6. Step 6: Final answer
    x = 189,872.36

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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.