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Finding the Fourth Proportional to 329,621.84, 454,875.72 and 178,717.76

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Solution

The fourth proportional to 329,621.84, 454,875.72 and 178,717.76 is: 246,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,621.84 : 454,875.72 = 178,717.76 : x
  2. Step 2: Convert to fraction form
    329,621.84/454,875.72 = 178,717.76/x
  3. Step 3: Cross multiply
    329,621.84x = 454,875.72 × 178,717.76
  4. Step 4: Simplify right side
    329,621.84x = 81,294,369,756.79
  5. Step 5: Solve for x
    x = 81,294,369,756.79/329,621.84
  6. Step 6: Final answer
    x = 246,629.20

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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.