Home / 279,688.40-419,593.35-102,195.13

Finding the Fourth Proportional to 279,688.40, 419,593.35 and 102,195.13

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Solution

The fourth proportional to 279,688.40, 419,593.35 and 102,195.13 is: 153,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,688.40 : 419,593.35 = 102,195.13 : x
  2. Step 2: Convert to fraction form
    279,688.40/419,593.35 = 102,195.13/x
  3. Step 3: Cross multiply
    279,688.40x = 419,593.35 × 102,195.13
  4. Step 4: Simplify right side
    279,688.40x = 42,880,396,950.39
  5. Step 5: Solve for x
    x = 42,880,396,950.39/279,688.40
  6. Step 6: Final answer
    x = 153,314.89

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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.