Home / 340,330.25-469,637.90-187,338.56

Finding the Fourth Proportional to 340,330.25, 469,637.90 and 187,338.56

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Solution

The fourth proportional to 340,330.25, 469,637.90 and 187,338.56 is: 258,517.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,330.25 : 469,637.90 = 187,338.56 : x
  2. Step 2: Convert to fraction form
    340,330.25/469,637.90 = 187,338.56/x
  3. Step 3: Cross multiply
    340,330.25x = 469,637.90 × 187,338.56
  4. Step 4: Simplify right side
    340,330.25x = 87,981,287,907.42
  5. Step 5: Solve for x
    x = 87,981,287,907.42/340,330.25
  6. Step 6: Final answer
    x = 258,517.39

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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.