Home / 256,829.20-385,704.60-186,787.60

Finding the Fourth Proportional to 256,829.20, 385,704.60 and 186,787.60

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Solution

The fourth proportional to 256,829.20, 385,704.60 and 186,787.60 is: 280,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,829.20 : 385,704.60 = 186,787.60 : x
  2. Step 2: Convert to fraction form
    256,829.20/385,704.60 = 186,787.60/x
  3. Step 3: Cross multiply
    256,829.20x = 385,704.60 × 186,787.60
  4. Step 4: Simplify right side
    256,829.20x = 72,044,836,542.96
  5. Step 5: Solve for x
    x = 72,044,836,542.96/256,829.20
  6. Step 6: Final answer
    x = 280,516.53

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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.