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Finding the Fourth Proportional to 491,688.36, 737,819.31 and 207,361.38

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Solution

The fourth proportional to 491,688.36, 737,819.31 and 207,361.38 is: 311,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,688.36 : 737,819.31 = 207,361.38 : x
  2. Step 2: Convert to fraction form
    491,688.36/737,819.31 = 207,361.38/x
  3. Step 3: Cross multiply
    491,688.36x = 737,819.31 × 207,361.38
  4. Step 4: Simplify right side
    491,688.36x = 152,995,230,312.25
  5. Step 5: Solve for x
    x = 152,995,230,312.25/491,688.36
  6. Step 6: Final answer
    x = 311,163.01

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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.