Home / 290,811.88-436,039.14-113,111.74

Finding the Fourth Proportional to 290,811.88, 436,039.14 and 113,111.74

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Solution

The fourth proportional to 290,811.88, 436,039.14 and 113,111.74 is: 169,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,811.88 : 436,039.14 = 113,111.74 : x
  2. Step 2: Convert to fraction form
    290,811.88/436,039.14 = 113,111.74/x
  3. Step 3: Cross multiply
    290,811.88x = 436,039.14 × 113,111.74
  4. Step 4: Simplify right side
    290,811.88x = 49,321,145,833.50
  5. Step 5: Solve for x
    x = 49,321,145,833.50/290,811.88
  6. Step 6: Final answer
    x = 169,598.11

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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.