Home / 290,324.43-435,317.14-112,623.79

Finding the Fourth Proportional to 290,324.43, 435,317.14 and 112,623.79

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Solution

The fourth proportional to 290,324.43, 435,317.14 and 112,623.79 is: 168,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,324.43 : 435,317.14 = 112,623.79 : x
  2. Step 2: Convert to fraction form
    290,324.43/435,317.14 = 112,623.79/x
  3. Step 3: Cross multiply
    290,324.43x = 435,317.14 × 112,623.79
  4. Step 4: Simplify right side
    290,324.43x = 49,027,066,158.76
  5. Step 5: Solve for x
    x = 49,027,066,158.76/290,324.43
  6. Step 6: Final answer
    x = 168,869.93

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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.