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Finding the Fourth Proportional to 290,283.93, 435,453.48 and 112,804.68

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Solution

The fourth proportional to 290,283.93, 435,453.48 and 112,804.68 is: 169,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,283.93 : 435,453.48 = 112,804.68 : x
  2. Step 2: Convert to fraction form
    290,283.93/435,453.48 = 112,804.68/x
  3. Step 3: Cross multiply
    290,283.93x = 435,453.48 × 112,804.68
  4. Step 4: Simplify right side
    290,283.93x = 49,121,190,466.29
  5. Step 5: Solve for x
    x = 49,121,190,466.29/290,283.93
  6. Step 6: Final answer
    x = 169,217.74

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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.