Home / 205,580.20-308,359.26-65,327.90

Finding the Fourth Proportional to 205,580.20, 308,359.26 and 65,327.90

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Solution

The fourth proportional to 205,580.20, 308,359.26 and 65,327.90 is: 97,988.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,580.20 : 308,359.26 = 65,327.90 : x
  2. Step 2: Convert to fraction form
    205,580.20/308,359.26 = 65,327.90/x
  3. Step 3: Cross multiply
    205,580.20x = 308,359.26 × 65,327.90
  4. Step 4: Simplify right side
    205,580.20x = 20,144,462,901.35
  5. Step 5: Solve for x
    x = 20,144,462,901.35/205,580.20
  6. Step 6: Final answer
    x = 97,988.34

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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.