Home / 260,046.20-390,069.30-159,881.60

Finding the Fourth Proportional to 260,046.20, 390,069.30 and 159,881.60

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Solution

The fourth proportional to 260,046.20, 390,069.30 and 159,881.60 is: 239,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,046.20 : 390,069.30 = 159,881.60 : x
  2. Step 2: Convert to fraction form
    260,046.20/390,069.30 = 159,881.60/x
  3. Step 3: Cross multiply
    260,046.20x = 390,069.30 × 159,881.60
  4. Step 4: Simplify right side
    260,046.20x = 62,364,903,794.88
  5. Step 5: Solve for x
    x = 62,364,903,794.88/260,046.20
  6. Step 6: Final answer
    x = 239,822.40

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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.