Home / 367,828.80-551,743.20-190,390.20

Finding the Fourth Proportional to 367,828.80, 551,743.20 and 190,390.20

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Solution

The fourth proportional to 367,828.80, 551,743.20 and 190,390.20 is: 285,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,828.80 : 551,743.20 = 190,390.20 : x
  2. Step 2: Convert to fraction form
    367,828.80/551,743.20 = 190,390.20/x
  3. Step 3: Cross multiply
    367,828.80x = 551,743.20 × 190,390.20
  4. Step 4: Simplify right side
    367,828.80x = 105,046,498,196.64
  5. Step 5: Solve for x
    x = 105,046,498,196.64/367,828.80
  6. Step 6: Final answer
    x = 285,585.30

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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.