Home / 284,121.20-426,181.80-165,731.60

Finding the Fourth Proportional to 284,121.20, 426,181.80 and 165,731.60

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Solution

The fourth proportional to 284,121.20, 426,181.80 and 165,731.60 is: 248,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,121.20 : 426,181.80 = 165,731.60 : x
  2. Step 2: Convert to fraction form
    284,121.20/426,181.80 = 165,731.60/x
  3. Step 3: Cross multiply
    284,121.20x = 426,181.80 × 165,731.60
  4. Step 4: Simplify right side
    284,121.20x = 70,631,791,604.88
  5. Step 5: Solve for x
    x = 70,631,791,604.88/284,121.20
  6. Step 6: Final answer
    x = 248,597.40

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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.