Home / 291,054.25-436,581.38-80,692.19

Finding the Fourth Proportional to 291,054.25, 436,581.38 and 80,692.19

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Solution

The fourth proportional to 291,054.25, 436,581.38 and 80,692.19 is: 121,038.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,054.25 : 436,581.38 = 80,692.19 : x
  2. Step 2: Convert to fraction form
    291,054.25/436,581.38 = 80,692.19/x
  3. Step 3: Cross multiply
    291,054.25x = 436,581.38 × 80,692.19
  4. Step 4: Simplify right side
    291,054.25x = 35,228,707,665.42
  5. Step 5: Solve for x
    x = 35,228,707,665.42/291,054.25
  6. Step 6: Final answer
    x = 121,038.29

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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.