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Finding the Fourth Proportional to 439,550.83, 659,289.79 and 140,019.31

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Solution

The fourth proportional to 439,550.83, 659,289.79 and 140,019.31 is: 210,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,550.83 : 659,289.79 = 140,019.31 : x
  2. Step 2: Convert to fraction form
    439,550.83/659,289.79 = 140,019.31/x
  3. Step 3: Cross multiply
    439,550.83x = 659,289.79 × 140,019.31
  4. Step 4: Simplify right side
    439,550.83x = 92,313,301,485.84
  5. Step 5: Solve for x
    x = 92,313,301,485.84/439,550.83
  6. Step 6: Final answer
    x = 210,017.35

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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.