Home / 294,911.20-442,366.80-272,101.60

Finding the Fourth Proportional to 294,911.20, 442,366.80 and 272,101.60

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Solution

The fourth proportional to 294,911.20, 442,366.80 and 272,101.60 is: 408,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,911.20 : 442,366.80 = 272,101.60 : x
  2. Step 2: Convert to fraction form
    294,911.20/442,366.80 = 272,101.60/x
  3. Step 3: Cross multiply
    294,911.20x = 442,366.80 × 272,101.60
  4. Step 4: Simplify right side
    294,911.20x = 120,368,714,066.88
  5. Step 5: Solve for x
    x = 120,368,714,066.88/294,911.20
  6. Step 6: Final answer
    x = 408,152.40

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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.