Home / 398,837.56-598,372.98-118,362.10

Finding the Fourth Proportional to 398,837.56, 598,372.98 and 118,362.10

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Solution

The fourth proportional to 398,837.56, 598,372.98 and 118,362.10 is: 177,577.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,837.56 : 598,372.98 = 118,362.10 : x
  2. Step 2: Convert to fraction form
    398,837.56/598,372.98 = 118,362.10/x
  3. Step 3: Cross multiply
    398,837.56x = 598,372.98 × 118,362.10
  4. Step 4: Simplify right side
    398,837.56x = 70,824,682,496.06
  5. Step 5: Solve for x
    x = 70,824,682,496.06/398,837.56
  6. Step 6: Final answer
    x = 177,577.76

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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.