Home / 290,260.60-435,559.04-121,766

Finding the Fourth Proportional to 290,260.60, 435,559.04 and 121,766

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Solution

The fourth proportional to 290,260.60, 435,559.04 and 121,766 is: 182,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,260.60 : 435,559.04 = 121,766 : x
  2. Step 2: Convert to fraction form
    290,260.60/435,559.04 = 121,766/x
  3. Step 3: Cross multiply
    290,260.60x = 435,559.04 × 121,766
  4. Step 4: Simplify right side
    290,260.60x = 53,036,282,064.64
  5. Step 5: Solve for x
    x = 53,036,282,064.64/290,260.60
  6. Step 6: Final answer
    x = 182,719.54

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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.