Home / 290,684.02-436,026.23-80,322.16

Finding the Fourth Proportional to 290,684.02, 436,026.23 and 80,322.16

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Solution

The fourth proportional to 290,684.02, 436,026.23 and 80,322.16 is: 120,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,684.02 : 436,026.23 = 80,322.16 : x
  2. Step 2: Convert to fraction form
    290,684.02/436,026.23 = 80,322.16/x
  3. Step 3: Cross multiply
    290,684.02x = 436,026.23 × 80,322.16
  4. Step 4: Simplify right side
    290,684.02x = 35,022,568,610.26
  5. Step 5: Solve for x
    x = 35,022,568,610.26/290,684.02
  6. Step 6: Final answer
    x = 120,483.30

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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.