Home / 426,148.24-639,056.16-159,763.36

Finding the Fourth Proportional to 426,148.24, 639,056.16 and 159,763.36

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Solution

The fourth proportional to 426,148.24, 639,056.16 and 159,763.36 is: 239,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,148.24 : 639,056.16 = 159,763.36 : x
  2. Step 2: Convert to fraction form
    426,148.24/639,056.16 = 159,763.36/x
  3. Step 3: Cross multiply
    426,148.24x = 639,056.16 × 159,763.36
  4. Step 4: Simplify right side
    426,148.24x = 102,097,759,350.30
  5. Step 5: Solve for x
    x = 102,097,759,350.30/426,148.24
  6. Step 6: Final answer
    x = 239,582.73

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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.