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Finding the Fourth Proportional to 330,005.87, 495,244.83 and 140,598.98

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Solution

The fourth proportional to 330,005.87, 495,244.83 and 140,598.98 is: 210,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,005.87 : 495,244.83 = 140,598.98 : x
  2. Step 2: Convert to fraction form
    330,005.87/495,244.83 = 140,598.98/x
  3. Step 3: Cross multiply
    330,005.87x = 495,244.83 × 140,598.98
  4. Step 4: Simplify right side
    330,005.87x = 69,630,917,948.27
  5. Step 5: Solve for x
    x = 69,630,917,948.27/330,005.87
  6. Step 6: Final answer
    x = 210,999.03

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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.