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Finding the Fourth Proportional to 329,645.88, 454,911.58 and 178,742.88

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Solution

The fourth proportional to 329,645.88, 454,911.58 and 178,742.88 is: 246,665.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,645.88 : 454,911.58 = 178,742.88 : x
  2. Step 2: Convert to fraction form
    329,645.88/454,911.58 = 178,742.88/x
  3. Step 3: Cross multiply
    329,645.88x = 454,911.58 × 178,742.88
  4. Step 4: Simplify right side
    329,645.88x = 81,312,205,954.55
  5. Step 5: Solve for x
    x = 81,312,205,954.55/329,645.88
  6. Step 6: Final answer
    x = 246,665.32

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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.