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Finding the Fourth Proportional to 245,327.70, 367,991.55 and 203,855.70

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Solution

The fourth proportional to 245,327.70, 367,991.55 and 203,855.70 is: 305,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,327.70 : 367,991.55 = 203,855.70 : x
  2. Step 2: Convert to fraction form
    245,327.70/367,991.55 = 203,855.70/x
  3. Step 3: Cross multiply
    245,327.70x = 367,991.55 × 203,855.70
  4. Step 4: Simplify right side
    245,327.70x = 75,017,175,019.34
  5. Step 5: Solve for x
    x = 75,017,175,019.34/245,327.70
  6. Step 6: Final answer
    x = 305,783.55

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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.