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Finding the Fourth Proportional to 360,285.87, 497,220.32 and 199,137.49

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Solution

The fourth proportional to 360,285.87, 497,220.32 and 199,137.49 is: 274,824.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,285.87 : 497,220.32 = 199,137.49 : x
  2. Step 2: Convert to fraction form
    360,285.87/497,220.32 = 199,137.49/x
  3. Step 3: Cross multiply
    360,285.87x = 497,220.32 × 199,137.49
  4. Step 4: Simplify right side
    360,285.87x = 99,015,206,501.80
  5. Step 5: Solve for x
    x = 99,015,206,501.80/360,285.87
  6. Step 6: Final answer
    x = 274,824.01

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.