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Finding the Fourth Proportional to 154,319.88, 231,215.26 and 103,623.88

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Solution

The fourth proportional to 154,319.88, 231,215.26 and 103,623.88 is: 155,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,319.88 : 231,215.26 = 103,623.88 : x
  2. Step 2: Convert to fraction form
    154,319.88/231,215.26 = 103,623.88/x
  3. Step 3: Cross multiply
    154,319.88x = 231,215.26 × 103,623.88
  4. Step 4: Simplify right side
    154,319.88x = 23,959,422,356.41
  5. Step 5: Solve for x
    x = 23,959,422,356.41/154,319.88
  6. Step 6: Final answer
    x = 155,258.17

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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.