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Finding the Fourth Proportional to 330,004.87, 495,243.33 and 140,597.98

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Solution

The fourth proportional to 330,004.87, 495,243.33 and 140,597.98 is: 210,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,004.87 : 495,243.33 = 140,597.98 : x
  2. Step 2: Convert to fraction form
    330,004.87/495,243.33 = 140,597.98/x
  3. Step 3: Cross multiply
    330,004.87x = 495,243.33 × 140,597.98
  4. Step 4: Simplify right side
    330,004.87x = 69,630,211,806.47
  5. Step 5: Solve for x
    x = 69,630,211,806.47/330,004.87
  6. Step 6: Final answer
    x = 210,997.53

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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.