Home / 209,350.96-288,839.15-118,699.81

Finding the Fourth Proportional to 209,350.96, 288,839.15 and 118,699.81

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Solution

The fourth proportional to 209,350.96, 288,839.15 and 118,699.81 is: 163,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,350.96 : 288,839.15 = 118,699.81 : x
  2. Step 2: Convert to fraction form
    209,350.96/288,839.15 = 118,699.81/x
  3. Step 3: Cross multiply
    209,350.96x = 288,839.15 × 118,699.81
  4. Step 4: Simplify right side
    209,350.96x = 34,285,151,355.09
  5. Step 5: Solve for x
    x = 34,285,151,355.09/209,350.96
  6. Step 6: Final answer
    x = 163,768.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.