Home / 290,268.45-435,430.16-112,789.15

Finding the Fourth Proportional to 290,268.45, 435,430.16 and 112,789.15

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Solution

The fourth proportional to 290,268.45, 435,430.16 and 112,789.15 is: 169,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,268.45 : 435,430.16 = 112,789.15 : x
  2. Step 2: Convert to fraction form
    290,268.45/435,430.16 = 112,789.15/x
  3. Step 3: Cross multiply
    290,268.45x = 435,430.16 × 112,789.15
  4. Step 4: Simplify right side
    290,268.45x = 49,111,797,630.76
  5. Step 5: Solve for x
    x = 49,111,797,630.76/290,268.45
  6. Step 6: Final answer
    x = 169,194.40

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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.