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Finding the Fourth Proportional to 329,431.42, 454,615.32 and 178,528.42

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Solution

The fourth proportional to 329,431.42, 454,615.32 and 178,528.42 is: 246,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,431.42 : 454,615.32 = 178,528.42 : x
  2. Step 2: Convert to fraction form
    329,431.42/454,615.32 = 178,528.42/x
  3. Step 3: Cross multiply
    329,431.42x = 454,615.32 × 178,528.42
  4. Step 4: Simplify right side
    329,431.42x = 81,161,754,787.39
  5. Step 5: Solve for x
    x = 81,161,754,787.39/329,431.42
  6. Step 6: Final answer
    x = 246,369.20

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1.5x scale

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.