Home / 228,568.22-315,426.45-137,906.64

Finding the Fourth Proportional to 228,568.22, 315,426.45 and 137,906.64

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Solution

The fourth proportional to 228,568.22, 315,426.45 and 137,906.64 is: 190,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,568.22 : 315,426.45 = 137,906.64 : x
  2. Step 2: Convert to fraction form
    228,568.22/315,426.45 = 137,906.64/x
  3. Step 3: Cross multiply
    228,568.22x = 315,426.45 × 137,906.64
  4. Step 4: Simplify right side
    228,568.22x = 43,499,401,886.63
  5. Step 5: Solve for x
    x = 43,499,401,886.63/228,568.22
  6. Step 6: Final answer
    x = 190,312.55

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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.