Home / 209,412.48-313,999.71-142,933.08

Finding the Fourth Proportional to 209,412.48, 313,999.71 and 142,933.08

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Solution

The fourth proportional to 209,412.48, 313,999.71 and 142,933.08 is: 214,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,412.48 : 313,999.71 = 142,933.08 : x
  2. Step 2: Convert to fraction form
    209,412.48/313,999.71 = 142,933.08/x
  3. Step 3: Cross multiply
    209,412.48x = 313,999.71 × 142,933.08
  4. Step 4: Simplify right side
    209,412.48x = 44,880,945,669.41
  5. Step 5: Solve for x
    x = 44,880,945,669.41/209,412.48
  6. Step 6: Final answer
    x = 214,318.39

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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.