Home / 426,148.34-639,056.39-159,763.50

Finding the Fourth Proportional to 426,148.34, 639,056.39 and 159,763.50

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Solution

The fourth proportional to 426,148.34, 639,056.39 and 159,763.50 is: 239,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,148.34 : 639,056.39 = 159,763.50 : x
  2. Step 2: Convert to fraction form
    426,148.34/639,056.39 = 159,763.50/x
  3. Step 3: Cross multiply
    426,148.34x = 639,056.39 × 159,763.50
  4. Step 4: Simplify right side
    426,148.34x = 102,097,884,764.95
  5. Step 5: Solve for x
    x = 102,097,884,764.95/426,148.34
  6. Step 6: Final answer
    x = 239,582.97

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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.