Home / 419,561.29-578,995.31-238,273.18

Finding the Fourth Proportional to 419,561.29, 578,995.31 and 238,273.18

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Solution

The fourth proportional to 419,561.29, 578,995.31 and 238,273.18 is: 328,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,561.29 : 578,995.31 = 238,273.18 : x
  2. Step 2: Convert to fraction form
    419,561.29/578,995.31 = 238,273.18/x
  3. Step 3: Cross multiply
    419,561.29x = 578,995.31 × 238,273.18
  4. Step 4: Simplify right side
    419,561.29x = 137,959,049,632.44
  5. Step 5: Solve for x
    x = 137,959,049,632.44/419,561.29
  6. Step 6: Final answer
    x = 328,817.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.