Home / 277,640.28-383,142.36-156,780.24

Finding the Fourth Proportional to 277,640.28, 383,142.36 and 156,780.24

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Solution

The fourth proportional to 277,640.28, 383,142.36 and 156,780.24 is: 216,356.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,640.28 : 383,142.36 = 156,780.24 : x
  2. Step 2: Convert to fraction form
    277,640.28/383,142.36 = 156,780.24/x
  3. Step 3: Cross multiply
    277,640.28x = 383,142.36 × 156,780.24
  4. Step 4: Simplify right side
    277,640.28x = 60,069,151,154.97
  5. Step 5: Solve for x
    x = 60,069,151,154.97/277,640.28
  6. Step 6: Final answer
    x = 216,356.04

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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.