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Finding the Fourth Proportional to 329,867.40, 494,801.10 and 251,135.40

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Solution

The fourth proportional to 329,867.40, 494,801.10 and 251,135.40 is: 376,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,867.40 : 494,801.10 = 251,135.40 : x
  2. Step 2: Convert to fraction form
    329,867.40/494,801.10 = 251,135.40/x
  3. Step 3: Cross multiply
    329,867.40x = 494,801.10 × 251,135.40
  4. Step 4: Simplify right side
    329,867.40x = 124,262,072,168.94
  5. Step 5: Solve for x
    x = 124,262,072,168.94/329,867.40
  6. Step 6: Final answer
    x = 376,703.10

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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.