Home / 277,928.24-383,490.42-155,422.88

Finding the Fourth Proportional to 277,928.24, 383,490.42 and 155,422.88

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Solution

The fourth proportional to 277,928.24, 383,490.42 and 155,422.88 is: 214,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,928.24 : 383,490.42 = 155,422.88 : x
  2. Step 2: Convert to fraction form
    277,928.24/383,490.42 = 155,422.88/x
  3. Step 3: Cross multiply
    277,928.24x = 383,490.42 × 155,422.88
  4. Step 4: Simplify right side
    277,928.24x = 59,603,185,528.81
  5. Step 5: Solve for x
    x = 59,603,185,528.81/277,928.24
  6. Step 6: Final answer
    x = 214,455.31

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1.5x scale

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.