Home / 210,272.31-315,412.94-75,345.18

Finding the Fourth Proportional to 210,272.31, 315,412.94 and 75,345.18

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Solution

The fourth proportional to 210,272.31, 315,412.94 and 75,345.18 is: 113,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,272.31 : 315,412.94 = 75,345.18 : x
  2. Step 2: Convert to fraction form
    210,272.31/315,412.94 = 75,345.18/x
  3. Step 3: Cross multiply
    210,272.31x = 315,412.94 × 75,345.18
  4. Step 4: Simplify right side
    210,272.31x = 23,764,844,361.90
  5. Step 5: Solve for x
    x = 23,764,844,361.90/210,272.31
  6. Step 6: Final answer
    x = 113,019.37

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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.