Home / 295,215.20-442,822.80-272,405.60

Finding the Fourth Proportional to 295,215.20, 442,822.80 and 272,405.60

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Solution

The fourth proportional to 295,215.20, 442,822.80 and 272,405.60 is: 408,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,215.20 : 442,822.80 = 272,405.60 : x
  2. Step 2: Convert to fraction form
    295,215.20/442,822.80 = 272,405.60/x
  3. Step 3: Cross multiply
    295,215.20x = 442,822.80 × 272,405.60
  4. Step 4: Simplify right side
    295,215.20x = 120,627,410,527.68
  5. Step 5: Solve for x
    x = 120,627,410,527.68/295,215.20
  6. Step 6: Final answer
    x = 408,608.40

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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.