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Finding the Fourth Proportional to 290,272.95, 435,460.44 and 132,517.35

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Solution

The fourth proportional to 290,272.95, 435,460.44 and 132,517.35 is: 198,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,272.95 : 435,460.44 = 132,517.35 : x
  2. Step 2: Convert to fraction form
    290,272.95/435,460.44 = 132,517.35/x
  3. Step 3: Cross multiply
    290,272.95x = 435,460.44 × 132,517.35
  4. Step 4: Simplify right side
    290,272.95x = 57,706,063,538.63
  5. Step 5: Solve for x
    x = 57,706,063,538.63/290,272.95
  6. Step 6: Final answer
    x = 198,799.31

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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.