Home / 412,134.87-618,024.09-142,291.47

Finding the Fourth Proportional to 412,134.87, 618,024.09 and 142,291.47

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Solution

The fourth proportional to 412,134.87, 618,024.09 and 142,291.47 is: 213,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,134.87 : 618,024.09 = 142,291.47 : x
  2. Step 2: Convert to fraction form
    412,134.87/618,024.09 = 142,291.47/x
  3. Step 3: Cross multiply
    412,134.87x = 618,024.09 × 142,291.47
  4. Step 4: Simplify right side
    412,134.87x = 87,939,556,261.51
  5. Step 5: Solve for x
    x = 87,939,556,261.51/412,134.87
  6. Step 6: Final answer
    x = 213,375.68

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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.