Home / 279,973.15-419,305.75-257,366.14

Finding the Fourth Proportional to 279,973.15, 419,305.75 and 257,366.14

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Solution

The fourth proportional to 279,973.15, 419,305.75 and 257,366.14 is: 385,448.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,973.15 : 419,305.75 = 257,366.14 : x
  2. Step 2: Convert to fraction form
    279,973.15/419,305.75 = 257,366.14/x
  3. Step 3: Cross multiply
    279,973.15x = 419,305.75 × 257,366.14
  4. Step 4: Simplify right side
    279,973.15x = 107,915,102,357.31
  5. Step 5: Solve for x
    x = 107,915,102,357.31/279,973.15
  6. Step 6: Final answer
    x = 385,448.05

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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.