Home / 338,465.44-507,712.18-279,190.72

Finding the Fourth Proportional to 338,465.44, 507,712.18 and 279,190.72

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Solution

The fourth proportional to 338,465.44, 507,712.18 and 279,190.72 is: 418,797.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,465.44 : 507,712.18 = 279,190.72 : x
  2. Step 2: Convert to fraction form
    338,465.44/507,712.18 = 279,190.72/x
  3. Step 3: Cross multiply
    338,465.44x = 507,712.18 × 279,190.72
  4. Step 4: Simplify right side
    338,465.44x = 141,748,529,086.97
  5. Step 5: Solve for x
    x = 141,748,529,086.97/338,465.44
  6. Step 6: Final answer
    x = 418,797.64

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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.