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Finding the Fourth Proportional to 495,472.50, 743,245.83 and 140,515.11

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Solution

The fourth proportional to 495,472.50, 743,245.83 and 140,515.11 is: 210,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,472.50 : 743,245.83 = 140,515.11 : x
  2. Step 2: Convert to fraction form
    495,472.50/743,245.83 = 140,515.11/x
  3. Step 3: Cross multiply
    495,472.50x = 743,245.83 × 140,515.11
  4. Step 4: Simplify right side
    495,472.50x = 104,437,269,559.49
  5. Step 5: Solve for x
    x = 104,437,269,559.49/495,472.50
  6. Step 6: Final answer
    x = 210,783.18

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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.