Home / 290,664.52-435,947.58-80,303.08

Finding the Fourth Proportional to 290,664.52, 435,947.58 and 80,303.08

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Solution

The fourth proportional to 290,664.52, 435,947.58 and 80,303.08 is: 120,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,664.52 : 435,947.58 = 80,303.08 : x
  2. Step 2: Convert to fraction form
    290,664.52/435,947.58 = 80,303.08/x
  3. Step 3: Cross multiply
    290,664.52x = 435,947.58 × 80,303.08
  4. Step 4: Simplify right side
    290,664.52x = 35,007,933,392.55
  5. Step 5: Solve for x
    x = 35,007,933,392.55/290,664.52
  6. Step 6: Final answer
    x = 120,441.03

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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.