Home / 291,019.08-436,558.98-80,657.22

Finding the Fourth Proportional to 291,019.08, 436,558.98 and 80,657.22

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Solution

The fourth proportional to 291,019.08, 436,558.98 and 80,657.22 is: 120,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,019.08 : 436,558.98 = 80,657.22 : x
  2. Step 2: Convert to fraction form
    291,019.08/436,558.98 = 80,657.22/x
  3. Step 3: Cross multiply
    291,019.08x = 436,558.98 × 80,657.22
  4. Step 4: Simplify right side
    291,019.08x = 35,211,633,692.84
  5. Step 5: Solve for x
    x = 35,211,633,692.84/291,019.08
  6. Step 6: Final answer
    x = 120,994.24

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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.