Home / 205,316.20-307,974.30-55,579.60

Finding the Fourth Proportional to 205,316.20, 307,974.30 and 55,579.60

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Solution

The fourth proportional to 205,316.20, 307,974.30 and 55,579.60 is: 83,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,316.20 : 307,974.30 = 55,579.60 : x
  2. Step 2: Convert to fraction form
    205,316.20/307,974.30 = 55,579.60/x
  3. Step 3: Cross multiply
    205,316.20x = 307,974.30 × 55,579.60
  4. Step 4: Simplify right side
    205,316.20x = 17,117,088,404.28
  5. Step 5: Solve for x
    x = 17,117,088,404.28/205,316.20
  6. Step 6: Final answer
    x = 83,369.40

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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.