Home / 291,285.07-436,933.07-80,928.48

Finding the Fourth Proportional to 291,285.07, 436,933.07 and 80,928.48

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Solution

The fourth proportional to 291,285.07, 436,933.07 and 80,928.48 is: 121,394.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,285.07 : 436,933.07 = 80,928.48 : x
  2. Step 2: Convert to fraction form
    291,285.07/436,933.07 = 80,928.48/x
  3. Step 3: Cross multiply
    291,285.07x = 436,933.07 × 80,928.48
  4. Step 4: Simplify right side
    291,285.07x = 35,360,329,216.83
  5. Step 5: Solve for x
    x = 35,360,329,216.83/291,285.07
  6. Step 6: Final answer
    x = 121,394.24

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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.