Home / 260,026.20-390,039.30-159,861.60

Finding the Fourth Proportional to 260,026.20, 390,039.30 and 159,861.60

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Solution

The fourth proportional to 260,026.20, 390,039.30 and 159,861.60 is: 239,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,026.20 : 390,039.30 = 159,861.60 : x
  2. Step 2: Convert to fraction form
    260,026.20/390,039.30 = 159,861.60/x
  3. Step 3: Cross multiply
    260,026.20x = 390,039.30 × 159,861.60
  4. Step 4: Simplify right side
    260,026.20x = 62,352,306,560.88
  5. Step 5: Solve for x
    x = 62,352,306,560.88/260,026.20
  6. Step 6: Final answer
    x = 239,792.40

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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.