Finding the Fourth Proportional to 315,064.96, 434,785.05 and 171,824.68
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Solution
The fourth proportional to 315,064.96, 434,785.05 and 171,824.68 is: 237,115.55
Step by Step Solution
- Step 1: Write the proportion equation
315,064.96 : 434,785.05 = 171,824.68 : x - Step 2: Convert to fraction form
315,064.96/434,785.05 = 171,824.68/x - Step 3: Cross multiply
315,064.96x = 434,785.05 × 171,824.68 - Step 4: Simplify right side
315,064.96x = 74,706,802,085.03 - Step 5: Solve for x
x = 74,706,802,085.03/315,064.96 - Step 6: Final answer
x = 237,115.55
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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.