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Finding the Fourth Proportional to 290,796.68, 436,195.71 and 88,394.64

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Solution

The fourth proportional to 290,796.68, 436,195.71 and 88,394.64 is: 132,592.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,796.68 : 436,195.71 = 88,394.64 : x
  2. Step 2: Convert to fraction form
    290,796.68/436,195.71 = 88,394.64/x
  3. Step 3: Cross multiply
    290,796.68x = 436,195.71 × 88,394.64
  4. Step 4: Simplify right side
    290,796.68x = 38,557,362,754.99
  5. Step 5: Solve for x
    x = 38,557,362,754.99/290,796.68
  6. Step 6: Final answer
    x = 132,592.17

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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.