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Finding the Fourth Proportional to 329,885.40, 494,828.10 and 251,153.40

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Solution

The fourth proportional to 329,885.40, 494,828.10 and 251,153.40 is: 376,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,885.40 : 494,828.10 = 251,153.40 : x
  2. Step 2: Convert to fraction form
    329,885.40/494,828.10 = 251,153.40/x
  3. Step 3: Cross multiply
    329,885.40x = 494,828.10 × 251,153.40
  4. Step 4: Simplify right side
    329,885.40x = 124,277,759,730.54
  5. Step 5: Solve for x
    x = 124,277,759,730.54/329,885.40
  6. Step 6: Final answer
    x = 376,730.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.