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Finding the Fourth Proportional to 216,787.88, 325,313.04 and 92,128.88

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Solution

The fourth proportional to 216,787.88, 325,313.04 and 92,128.88 is: 138,249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,787.88 : 325,313.04 = 92,128.88 : x
  2. Step 2: Convert to fraction form
    216,787.88/325,313.04 = 92,128.88/x
  3. Step 3: Cross multiply
    216,787.88x = 325,313.04 × 92,128.88
  4. Step 4: Simplify right side
    216,787.88x = 29,970,724,398.03
  5. Step 5: Solve for x
    x = 29,970,724,398.03/216,787.88
  6. Step 6: Final answer
    x = 138,249.08

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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.