Finding the Fourth Proportional to 315,430.88, 435,295.84 and 172,194.08
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Solution
The fourth proportional to 315,430.88, 435,295.84 and 172,194.08 is: 237,628.50
Step by Step Solution
- Step 1: Write the proportion equation
315,430.88 : 435,295.84 = 172,194.08 : x - Step 2: Convert to fraction form
315,430.88/435,295.84 = 172,194.08/x - Step 3: Cross multiply
315,430.88x = 435,295.84 × 172,194.08 - Step 4: Simplify right side
315,430.88x = 74,955,366,696.63 - Step 5: Solve for x
x = 74,955,366,696.63/315,430.88 - Step 6: Final answer
x = 237,628.50
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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.