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Finding the Fourth Proportional to 360,518.37, 540,485.94 and 220,229.61

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Solution

The fourth proportional to 360,518.37, 540,485.94 and 220,229.61 is: 330,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,518.37 : 540,485.94 = 220,229.61 : x
  2. Step 2: Convert to fraction form
    360,518.37/540,485.94 = 220,229.61/x
  3. Step 3: Cross multiply
    360,518.37x = 540,485.94 × 220,229.61
  4. Step 4: Simplify right side
    360,518.37x = 119,031,007,776.68
  5. Step 5: Solve for x
    x = 119,031,007,776.68/360,518.37
  6. Step 6: Final answer
    x = 330,166.28

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1.5x scale

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.