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Finding the Fourth Proportional to 325,220.94, 487,828.67 and 254,203.31

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Solution

The fourth proportional to 325,220.94, 487,828.67 and 254,203.31 is: 381,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,220.94 : 487,828.67 = 254,203.31 : x
  2. Step 2: Convert to fraction form
    325,220.94/487,828.67 = 254,203.31/x
  3. Step 3: Cross multiply
    325,220.94x = 487,828.67 × 254,203.31
  4. Step 4: Simplify right side
    325,220.94x = 124,007,663,528.72
  5. Step 5: Solve for x
    x = 124,007,663,528.72/325,220.94
  6. Step 6: Final answer
    x = 381,302.83

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1.5x scale

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.