Home / 290,645.24-436,051.22-122,078.86

Finding the Fourth Proportional to 290,645.24, 436,051.22 and 122,078.86

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Solution

The fourth proportional to 290,645.24, 436,051.22 and 122,078.86 is: 183,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,645.24 : 436,051.22 = 122,078.86 : x
  2. Step 2: Convert to fraction form
    290,645.24/436,051.22 = 122,078.86/x
  3. Step 3: Cross multiply
    290,645.24x = 436,051.22 × 122,078.86
  4. Step 4: Simplify right side
    290,645.24x = 53,232,635,839.21
  5. Step 5: Solve for x
    x = 53,232,635,839.21/290,645.24
  6. Step 6: Final answer
    x = 183,153.30

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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.