Home / 426,122.48-639,162.96-159,862.25

Finding the Fourth Proportional to 426,122.48, 639,162.96 and 159,862.25

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Solution

The fourth proportional to 426,122.48, 639,162.96 and 159,862.25 is: 239,785.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,122.48 : 639,162.96 = 159,862.25 : x
  2. Step 2: Convert to fraction form
    426,122.48/639,162.96 = 159,862.25/x
  3. Step 3: Cross multiply
    426,122.48x = 639,162.96 × 159,862.25
  4. Step 4: Simplify right side
    426,122.48x = 102,178,028,902.26
  5. Step 5: Solve for x
    x = 102,178,028,902.26/426,122.48
  6. Step 6: Final answer
    x = 239,785.59

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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.