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Finding the Fourth Proportional to 338,496.76, 507,759.06 and 279,222.04

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Solution

The fourth proportional to 338,496.76, 507,759.06 and 279,222.04 is: 418,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,496.76 : 507,759.06 = 279,222.04 : x
  2. Step 2: Convert to fraction form
    338,496.76/507,759.06 = 279,222.04/x
  3. Step 3: Cross multiply
    338,496.76x = 507,759.06 × 279,222.04
  4. Step 4: Simplify right side
    338,496.76x = 141,777,520,561.68
  5. Step 5: Solve for x
    x = 141,777,520,561.68/338,496.76
  6. Step 6: Final answer
    x = 418,844.54

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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.