Finding the Fourth Proportional to 245,056.55, 338,138.33 and 153,164.99
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Solution
The fourth proportional to 245,056.55, 338,138.33 and 153,164.99 is: 211,342.87
Step by Step Solution
- Step 1: Write the proportion equation
245,056.55 : 338,138.33 = 153,164.99 : x - Step 2: Convert to fraction form
245,056.55/338,138.33 = 153,164.99/x - Step 3: Cross multiply
245,056.55x = 338,138.33 × 153,164.99 - Step 4: Simplify right side
245,056.55x = 51,790,954,012.59 - Step 5: Solve for x
x = 51,790,954,012.59/245,056.55 - Step 6: Final answer
x = 211,342.87
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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.