Finding the Fourth Proportional to 211,259.25, 316,675.64 and 132,428.84
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Solution
The fourth proportional to 211,259.25, 316,675.64 and 132,428.84 is: 198,509.59
Step by Step Solution
- Step 1: Write the proportion equation
211,259.25 : 316,675.64 = 132,428.84 : x - Step 2: Convert to fraction form
211,259.25/316,675.64 = 132,428.84/x - Step 3: Cross multiply
211,259.25x = 316,675.64 × 132,428.84 - Step 4: Simplify right side
211,259.25x = 41,936,986,078.08 - Step 5: Solve for x
x = 41,936,986,078.08/211,259.25 - Step 6: Final answer
x = 198,509.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.