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Finding the Fourth Proportional to 329,951.70, 494,927.55 and 143,327.70

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Solution

The fourth proportional to 329,951.70, 494,927.55 and 143,327.70 is: 214,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,951.70 : 494,927.55 = 143,327.70 : x
  2. Step 2: Convert to fraction form
    329,951.70/494,927.55 = 143,327.70/x
  3. Step 3: Cross multiply
    329,951.70x = 494,927.55 × 143,327.70
  4. Step 4: Simplify right side
    329,951.70x = 70,936,827,408.14
  5. Step 5: Solve for x
    x = 70,936,827,408.14/329,951.70
  6. Step 6: Final answer
    x = 214,991.55

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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.