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Finding the Fourth Proportional to 329,434, 454,619.30 and 178,531

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Solution

The fourth proportional to 329,434, 454,619.30 and 178,531 is: 246,372.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,434 : 454,619.30 = 178,531 : x
  2. Step 2: Convert to fraction form
    329,434/454,619.30 = 178,531/x
  3. Step 3: Cross multiply
    329,434x = 454,619.30 × 178,531
  4. Step 4: Simplify right side
    329,434x = 81,163,638,248.30
  5. Step 5: Solve for x
    x = 81,163,638,248.30/329,434
  6. Step 6: Final answer
    x = 246,372.99

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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.