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Finding the Fourth Proportional to 329,478.49, 454,680.71 and 178,575.49

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Solution

The fourth proportional to 329,478.49, 454,680.71 and 178,575.49 is: 246,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,478.49 : 454,680.71 = 178,575.49 : x
  2. Step 2: Convert to fraction form
    329,478.49/454,680.71 = 178,575.49/x
  3. Step 3: Cross multiply
    329,478.49x = 454,680.71 × 178,575.49
  4. Step 4: Simplify right side
    329,478.49x = 81,194,829,688.92
  5. Step 5: Solve for x
    x = 81,194,829,688.92/329,478.49
  6. Step 6: Final answer
    x = 246,434.39

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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.