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Finding the Fourth Proportional to 290,224.31, 435,168.32 and 112,523.27

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Solution

The fourth proportional to 290,224.31, 435,168.32 and 112,523.27 is: 168,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,224.31 : 435,168.32 = 112,523.27 : x
  2. Step 2: Convert to fraction form
    290,224.31/435,168.32 = 112,523.27/x
  3. Step 3: Cross multiply
    290,224.31x = 435,168.32 × 112,523.27
  4. Step 4: Simplify right side
    290,224.31x = 48,966,559,628.35
  5. Step 5: Solve for x
    x = 48,966,559,628.35/290,224.31
  6. Step 6: Final answer
    x = 168,719.71

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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.