Home / 291,023.02-436,534.71-80,662.78

Finding the Fourth Proportional to 291,023.02, 436,534.71 and 80,662.78

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Solution

The fourth proportional to 291,023.02, 436,534.71 and 80,662.78 is: 120,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,023.02 : 436,534.71 = 80,662.78 : x
  2. Step 2: Convert to fraction form
    291,023.02/436,534.71 = 80,662.78/x
  3. Step 3: Cross multiply
    291,023.02x = 436,534.71 × 80,662.78
  4. Step 4: Simplify right side
    291,023.02x = 35,212,103,275.09
  5. Step 5: Solve for x
    x = 35,212,103,275.09/291,023.02
  6. Step 6: Final answer
    x = 120,994.22

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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.