Home / 290,986.38-436,586.20-122,549.12

Finding the Fourth Proportional to 290,986.38, 436,586.20 and 122,549.12

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Solution

The fourth proportional to 290,986.38, 436,586.20 and 122,549.12 is: 183,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,986.38 : 436,586.20 = 122,549.12 : x
  2. Step 2: Convert to fraction form
    290,986.38/436,586.20 = 122,549.12/x
  3. Step 3: Cross multiply
    290,986.38x = 436,586.20 × 122,549.12
  4. Step 4: Simplify right side
    290,986.38x = 53,503,254,614.14
  5. Step 5: Solve for x
    x = 53,503,254,614.14/290,986.38
  6. Step 6: Final answer
    x = 183,868.59

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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.