Home / 203,280.22-305,199.64-103,507.46

Finding the Fourth Proportional to 203,280.22, 305,199.64 and 103,507.46

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Solution

The fourth proportional to 203,280.22, 305,199.64 and 103,507.46 is: 155,403.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,280.22 : 305,199.64 = 103,507.46 : x
  2. Step 2: Convert to fraction form
    203,280.22/305,199.64 = 103,507.46/x
  3. Step 3: Cross multiply
    203,280.22x = 305,199.64 × 103,507.46
  4. Step 4: Simplify right side
    203,280.22x = 31,590,439,529.31
  5. Step 5: Solve for x
    x = 31,590,439,529.31/203,280.22
  6. Step 6: Final answer
    x = 155,403.41

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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.