Finding the Fourth Proportional to 385,030.66, 531,128.99 and 223,867.89
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Solution
The fourth proportional to 385,030.66, 531,128.99 and 223,867.89 is: 308,813.66
Step by Step Solution
- Step 1: Write the proportion equation
385,030.66 : 531,128.99 = 223,867.89 : x - Step 2: Convert to fraction form
385,030.66/531,128.99 = 223,867.89/x - Step 3: Cross multiply
385,030.66x = 531,128.99 × 223,867.89 - Step 4: Simplify right side
385,030.66x = 118,902,726,309.13 - Step 5: Solve for x
x = 118,902,726,309.13/385,030.66 - Step 6: Final answer
x = 308,813.66
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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.