Home / 356,720.43-492,255.36-203,728.35

Finding the Fourth Proportional to 356,720.43, 492,255.36 and 203,728.35

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Solution

The fourth proportional to 356,720.43, 492,255.36 and 203,728.35 is: 281,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,720.43 : 492,255.36 = 203,728.35 : x
  2. Step 2: Convert to fraction form
    356,720.43/492,255.36 = 203,728.35/x
  3. Step 3: Cross multiply
    356,720.43x = 492,255.36 × 203,728.35
  4. Step 4: Simplify right side
    356,720.43x = 100,286,372,271.46
  5. Step 5: Solve for x
    x = 100,286,372,271.46/356,720.43
  6. Step 6: Final answer
    x = 281,134.37

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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.