Home / 268,485.20-402,706.72-156,093.75

Finding the Fourth Proportional to 268,485.20, 402,706.72 and 156,093.75

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Solution

The fourth proportional to 268,485.20, 402,706.72 and 156,093.75 is: 234,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,485.20 : 402,706.72 = 156,093.75 : x
  2. Step 2: Convert to fraction form
    268,485.20/402,706.72 = 156,093.75/x
  3. Step 3: Cross multiply
    268,485.20x = 402,706.72 × 156,093.75
  4. Step 4: Simplify right side
    268,485.20x = 62,860,002,270.12
  5. Step 5: Solve for x
    x = 62,860,002,270.12/268,485.20
  6. Step 6: Final answer
    x = 234,128.37

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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.