Home / 315,398.56-435,185.04-181,236.64

Finding the Fourth Proportional to 315,398.56, 435,185.04 and 181,236.64

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Solution

The fourth proportional to 315,398.56, 435,185.04 and 181,236.64 is: 250,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,398.56 : 435,185.04 = 181,236.64 : x
  2. Step 2: Convert to fraction form
    315,398.56/435,185.04 = 181,236.64/x
  3. Step 3: Cross multiply
    315,398.56x = 435,185.04 × 181,236.64
  4. Step 4: Simplify right side
    315,398.56x = 78,871,474,427.87
  5. Step 5: Solve for x
    x = 78,871,474,427.87/315,398.56
  6. Step 6: Final answer
    x = 250,069.23

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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.