Home / 290,853.04-436,289.32-80,473.36

Finding the Fourth Proportional to 290,853.04, 436,289.32 and 80,473.36

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Solution

The fourth proportional to 290,853.04, 436,289.32 and 80,473.36 is: 120,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,853.04 : 436,289.32 = 80,473.36 : x
  2. Step 2: Convert to fraction form
    290,853.04/436,289.32 = 80,473.36/x
  3. Step 3: Cross multiply
    290,853.04x = 436,289.32 × 80,473.36
  4. Step 4: Simplify right side
    290,853.04x = 35,109,667,512.52
  5. Step 5: Solve for x
    x = 35,109,667,512.52/290,853.04
  6. Step 6: Final answer
    x = 120,712.74

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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.