Home / 426,370.40-639,218.22-160,101.26

Finding the Fourth Proportional to 426,370.40, 639,218.22 and 160,101.26

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Solution

The fourth proportional to 426,370.40, 639,218.22 and 160,101.26 is: 240,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,370.40 : 639,218.22 = 160,101.26 : x
  2. Step 2: Convert to fraction form
    426,370.40/639,218.22 = 160,101.26/x
  3. Step 3: Cross multiply
    426,370.40x = 639,218.22 × 160,101.26
  4. Step 4: Simplify right side
    426,370.40x = 102,339,642,436.96
  5. Step 5: Solve for x
    x = 102,339,642,436.96/426,370.40
  6. Step 6: Final answer
    x = 240,025.20

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1.5x scale

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.