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Finding the Fourth Proportional to 290,846.51, 436,034.42 and 130,805.23

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Solution

The fourth proportional to 290,846.51, 436,034.42 and 130,805.23 is: 196,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,846.51 : 436,034.42 = 130,805.23 : x
  2. Step 2: Convert to fraction form
    290,846.51/436,034.42 = 130,805.23/x
  3. Step 3: Cross multiply
    290,846.51x = 436,034.42 × 130,805.23
  4. Step 4: Simplify right side
    290,846.51x = 57,035,582,596.02
  5. Step 5: Solve for x
    x = 57,035,582,596.02/290,846.51
  6. Step 6: Final answer
    x = 196,102.00

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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.