Home / 367,623.40-551,435.10-209,867.80

Finding the Fourth Proportional to 367,623.40, 551,435.10 and 209,867.80

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Solution

The fourth proportional to 367,623.40, 551,435.10 and 209,867.80 is: 314,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,623.40 : 551,435.10 = 209,867.80 : x
  2. Step 2: Convert to fraction form
    367,623.40/551,435.10 = 209,867.80/x
  3. Step 3: Cross multiply
    367,623.40x = 551,435.10 × 209,867.80
  4. Step 4: Simplify right side
    367,623.40x = 115,728,471,279.78
  5. Step 5: Solve for x
    x = 115,728,471,279.78/367,623.40
  6. Step 6: Final answer
    x = 314,801.70

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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.