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Finding the Fourth Proportional to 495,479.70, 743,247.81 and 140,465.81

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Solution

The fourth proportional to 495,479.70, 743,247.81 and 140,465.81 is: 210,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,479.70 : 743,247.81 = 140,465.81 : x
  2. Step 2: Convert to fraction form
    495,479.70/743,247.81 = 140,465.81/x
  3. Step 3: Cross multiply
    495,479.70x = 743,247.81 × 140,465.81
  4. Step 4: Simplify right side
    495,479.70x = 104,400,907,520.50
  5. Step 5: Solve for x
    x = 104,400,907,520.50/495,479.70
  6. Step 6: Final answer
    x = 210,706.73

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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.