Finding the Fourth Proportional to 315,124.26, 434,877.35 and 171,889.44
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Solution
The fourth proportional to 315,124.26, 434,877.35 and 171,889.44 is: 237,210.63
Step by Step Solution
- Step 1: Write the proportion equation
315,124.26 : 434,877.35 = 171,889.44 : x - Step 2: Convert to fraction form
315,124.26/434,877.35 = 171,889.44/x - Step 3: Cross multiply
315,124.26x = 434,877.35 × 171,889.44 - Step 4: Simplify right side
315,124.26x = 74,750,824,160.18 - Step 5: Solve for x
x = 74,750,824,160.18/315,124.26 - Step 6: Final answer
x = 237,210.63
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1.5x scale
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.