Home / 426,130.29-639,029.39-159,745.50

Finding the Fourth Proportional to 426,130.29, 639,029.39 and 159,745.50

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Solution

The fourth proportional to 426,130.29, 639,029.39 and 159,745.50 is: 239,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,130.29 : 639,029.39 = 159,745.50 : x
  2. Step 2: Convert to fraction form
    426,130.29/639,029.39 = 159,745.50/x
  3. Step 3: Cross multiply
    426,130.29x = 639,029.39 × 159,745.50
  4. Step 4: Simplify right side
    426,130.29x = 102,082,068,621.52
  5. Step 5: Solve for x
    x = 102,082,068,621.52/426,130.29
  6. Step 6: Final answer
    x = 239,556.00

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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.