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Finding the Fourth Proportional to 144,700.05, 217,065.11 and 39,519

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Solution

The fourth proportional to 144,700.05, 217,065.11 and 39,519 is: 59,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,700.05 : 217,065.11 = 39,519 : x
  2. Step 2: Convert to fraction form
    144,700.05/217,065.11 = 39,519/x
  3. Step 3: Cross multiply
    144,700.05x = 217,065.11 × 39,519
  4. Step 4: Simplify right side
    144,700.05x = 8,578,195,884.50
  5. Step 5: Solve for x
    x = 8,578,195,884.50/144,700.05
  6. Step 6: Final answer
    x = 59,282.60

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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.