Finding the Fourth Proportional to 316,268.19, 436,407.08 and 188,916.75
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Solution
The fourth proportional to 316,268.19, 436,407.08 and 188,916.75 is: 260,679.41
Step by Step Solution
- Step 1: Write the proportion equation
316,268.19 : 436,407.08 = 188,916.75 : x - Step 2: Convert to fraction form
316,268.19/436,407.08 = 188,916.75/x - Step 3: Cross multiply
316,268.19x = 436,407.08 × 188,916.75 - Step 4: Simplify right side
316,268.19x = 82,444,606,286.01 - Step 5: Solve for x
x = 82,444,606,286.01/316,268.19 - Step 6: Final answer
x = 260,679.41
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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.