Home / 442,815.20-664,309.20-190,095.20

Finding the Fourth Proportional to 442,815.20, 664,309.20 and 190,095.20

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Solution

The fourth proportional to 442,815.20, 664,309.20 and 190,095.20 is: 285,179.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,815.20 : 664,309.20 = 190,095.20 : x
  2. Step 2: Convert to fraction form
    442,815.20/664,309.20 = 190,095.20/x
  3. Step 3: Cross multiply
    442,815.20x = 664,309.20 × 190,095.20
  4. Step 4: Simplify right side
    442,815.20x = 126,281,990,235.84
  5. Step 5: Solve for x
    x = 126,281,990,235.84/442,815.20
  6. Step 6: Final answer
    x = 285,179.89

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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.