Home / 338,355.46-507,493.68-135,943.36

Finding the Fourth Proportional to 338,355.46, 507,493.68 and 135,943.36

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Solution

The fourth proportional to 338,355.46, 507,493.68 and 135,943.36 is: 203,899.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,355.46 : 507,493.68 = 135,943.36 : x
  2. Step 2: Convert to fraction form
    338,355.46/507,493.68 = 135,943.36/x
  3. Step 3: Cross multiply
    338,355.46x = 507,493.68 × 135,943.36
  4. Step 4: Simplify right side
    338,355.46x = 68,990,396,037.96
  5. Step 5: Solve for x
    x = 68,990,396,037.96/338,355.46
  6. Step 6: Final answer
    x = 203,899.17

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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.