Home / 268,942.08-371,108.16-155,742.72

Finding the Fourth Proportional to 268,942.08, 371,108.16 and 155,742.72

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Solution

The fourth proportional to 268,942.08, 371,108.16 and 155,742.72 is: 214,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,942.08 : 371,108.16 = 155,742.72 : x
  2. Step 2: Convert to fraction form
    268,942.08/371,108.16 = 155,742.72/x
  3. Step 3: Cross multiply
    268,942.08x = 371,108.16 × 155,742.72
  4. Step 4: Simplify right side
    268,942.08x = 57,797,394,252.60
  5. Step 5: Solve for x
    x = 57,797,394,252.60/268,942.08
  6. Step 6: Final answer
    x = 214,906.47

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1.5x scale

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.