Home / 218,945.23-302,144.25-118,343.23

Finding the Fourth Proportional to 218,945.23, 302,144.25 and 118,343.23

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Solution

The fourth proportional to 218,945.23, 302,144.25 and 118,343.23 is: 163,313.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,945.23 : 302,144.25 = 118,343.23 : x
  2. Step 2: Convert to fraction form
    218,945.23/302,144.25 = 118,343.23/x
  3. Step 3: Cross multiply
    218,945.23x = 302,144.25 × 118,343.23
  4. Step 4: Simplify right side
    218,945.23x = 35,756,726,470.93
  5. Step 5: Solve for x
    x = 35,756,726,470.93/218,945.23
  6. Step 6: Final answer
    x = 163,313.57

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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.