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Finding the Fourth Proportional to 290,879.00, 436,210.49 and 101,290.70

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Solution

The fourth proportional to 290,879.00, 436,210.49 and 101,290.70 is: 151,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,879.00 : 436,210.49 = 101,290.70 : x
  2. Step 2: Convert to fraction form
    290,879.00/436,210.49 = 101,290.70/x
  3. Step 3: Cross multiply
    290,879.00x = 436,210.49 × 101,290.70
  4. Step 4: Simplify right side
    290,879.00x = 44,184,063,698.39
  5. Step 5: Solve for x
    x = 44,184,063,698.39/290,879.00
  6. Step 6: Final answer
    x = 151,898.43

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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.