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Finding the Fourth Proportional to 290,283.39, 435,452.57 and 112,804.09

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Solution

The fourth proportional to 290,283.39, 435,452.57 and 112,804.09 is: 169,216.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,283.39 : 435,452.57 = 112,804.09 : x
  2. Step 2: Convert to fraction form
    290,283.39/435,452.57 = 112,804.09/x
  3. Step 3: Cross multiply
    290,283.39x = 435,452.57 × 112,804.09
  4. Step 4: Simplify right side
    290,283.39x = 49,120,830,090.39
  5. Step 5: Solve for x
    x = 49,120,830,090.39/290,283.39
  6. Step 6: Final answer
    x = 169,216.81

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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.