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Finding the Fourth Proportional to 207,167.40, 311,000.04 and 140,404.98

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Solution

The fourth proportional to 207,167.40, 311,000.04 and 140,404.98 is: 210,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,167.40 : 311,000.04 = 140,404.98 : x
  2. Step 2: Convert to fraction form
    207,167.40/311,000.04 = 140,404.98/x
  3. Step 3: Cross multiply
    207,167.40x = 311,000.04 × 140,404.98
  4. Step 4: Simplify right side
    207,167.40x = 43,665,954,396.20
  5. Step 5: Solve for x
    x = 43,665,954,396.20/207,167.40
  6. Step 6: Final answer
    x = 210,776.19

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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.