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Finding the Fourth Proportional to 330,006.40, 495,245.58 and 140,599.42

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Solution

The fourth proportional to 330,006.40, 495,245.58 and 140,599.42 is: 210,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,006.40 : 495,245.58 = 140,599.42 : x
  2. Step 2: Convert to fraction form
    330,006.40/495,245.58 = 140,599.42/x
  3. Step 3: Cross multiply
    330,006.40x = 495,245.58 × 140,599.42
  4. Step 4: Simplify right side
    330,006.40x = 69,631,241,305.56
  5. Step 5: Solve for x
    x = 69,631,241,305.56/330,006.40
  6. Step 6: Final answer
    x = 210,999.67

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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.