Finding the Fourth Proportional to 316,871.49, 437,340.06 and 202,185.75
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Solution
The fourth proportional to 316,871.49, 437,340.06 and 202,185.75 is: 279,052.96
Step by Step Solution
- Step 1: Write the proportion equation
316,871.49 : 437,340.06 = 202,185.75 : x - Step 2: Convert to fraction form
316,871.49/437,340.06 = 202,185.75/x - Step 3: Cross multiply
316,871.49x = 437,340.06 × 202,185.75 - Step 4: Simplify right side
316,871.49x = 88,423,928,036.15 - Step 5: Solve for x
x = 88,423,928,036.15/316,871.49 - Step 6: Final answer
x = 279,052.96
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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.