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Finding the Fourth Proportional to 156,311.10, 218,573.10 and 156,311.10

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Solution

The fourth proportional to 156,311.10, 218,573.10 and 156,311.10 is: 218,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,311.10 : 218,573.10 = 156,311.10 : x
  2. Step 2: Convert to fraction form
    156,311.10/218,573.10 = 156,311.10/x
  3. Step 3: Cross multiply
    156,311.10x = 218,573.10 × 156,311.10
  4. Step 4: Simplify right side
    156,311.10x = 34,165,401,691.41
  5. Step 5: Solve for x
    x = 34,165,401,691.41/156,311.10
  6. Step 6: Final answer
    x = 218,573.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.