Home / 277,787.04-383,318.72-155,256.80

Finding the Fourth Proportional to 277,787.04, 383,318.72 and 155,256.80

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Solution

The fourth proportional to 277,787.04, 383,318.72 and 155,256.80 is: 214,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,787.04 : 383,318.72 = 155,256.80 : x
  2. Step 2: Convert to fraction form
    277,787.04/383,318.72 = 155,256.80/x
  3. Step 3: Cross multiply
    277,787.04x = 383,318.72 × 155,256.80
  4. Step 4: Simplify right side
    277,787.04x = 59,512,837,847.30
  5. Step 5: Solve for x
    x = 59,512,837,847.30/277,787.04
  6. Step 6: Final answer
    x = 214,239.07

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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.