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Finding the Fourth Proportional to 290,244.78, 435,199.55 and 112,544.19

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Solution

The fourth proportional to 290,244.78, 435,199.55 and 112,544.19 is: 168,751.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,244.78 : 435,199.55 = 112,544.19 : x
  2. Step 2: Convert to fraction form
    290,244.78/435,199.55 = 112,544.19/x
  3. Step 3: Cross multiply
    290,244.78x = 435,199.55 × 112,544.19
  4. Step 4: Simplify right side
    290,244.78x = 48,979,180,843.11
  5. Step 5: Solve for x
    x = 48,979,180,843.11/290,244.78
  6. Step 6: Final answer
    x = 168,751.29

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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.