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Finding the Fourth Proportional to 539,427.50, 809,180.14 and 207,003.50

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Solution

The fourth proportional to 539,427.50, 809,180.14 and 207,003.50 is: 310,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,427.50 : 809,180.14 = 207,003.50 : x
  2. Step 2: Convert to fraction form
    539,427.50/809,180.14 = 207,003.50/x
  3. Step 3: Cross multiply
    539,427.50x = 809,180.14 × 207,003.50
  4. Step 4: Simplify right side
    539,427.50x = 167,503,121,110.49
  5. Step 5: Solve for x
    x = 167,503,121,110.49/539,427.50
  6. Step 6: Final answer
    x = 310,520.17

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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.