Finding the Fourth Proportional to 316,356.93, 436,572.60 and 173,116.98
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Solution
The fourth proportional to 316,356.93, 436,572.60 and 173,116.98 is: 238,901.45
Step by Step Solution
- Step 1: Write the proportion equation
316,356.93 : 436,572.60 = 173,116.98 : x - Step 2: Convert to fraction form
316,356.93/436,572.60 = 173,116.98/x - Step 3: Cross multiply
316,356.93x = 436,572.60 × 173,116.98 - Step 4: Simplify right side
316,356.93x = 75,578,130,062.75 - Step 5: Solve for x
x = 75,578,130,062.75/316,356.93 - Step 6: Final answer
x = 238,901.45
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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.