Home / 426,143.04-639,048.40-159,758.36

Finding the Fourth Proportional to 426,143.04, 639,048.40 and 159,758.36

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Solution

The fourth proportional to 426,143.04, 639,048.40 and 159,758.36 is: 239,575.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,143.04 : 639,048.40 = 159,758.36 : x
  2. Step 2: Convert to fraction form
    426,143.04/639,048.40 = 159,758.36/x
  3. Step 3: Cross multiply
    426,143.04x = 639,048.40 × 159,758.36
  4. Step 4: Simplify right side
    426,143.04x = 102,093,324,344.62
  5. Step 5: Solve for x
    x = 102,093,324,344.62/426,143.04
  6. Step 6: Final answer
    x = 239,575.25

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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.