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Finding the Fourth Proportional to 290,651.48, 436,145.46 and 122,158.52

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Solution

The fourth proportional to 290,651.48, 436,145.46 and 122,158.52 is: 183,308.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,651.48 : 436,145.46 = 122,158.52 : x
  2. Step 2: Convert to fraction form
    290,651.48/436,145.46 = 122,158.52/x
  3. Step 3: Cross multiply
    290,651.48x = 436,145.46 × 122,158.52
  4. Step 4: Simplify right side
    290,651.48x = 53,278,883,898.32
  5. Step 5: Solve for x
    x = 53,278,883,898.32/290,651.48
  6. Step 6: Final answer
    x = 183,308.49

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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.