Finding the Fourth Proportional to 231,862.08, 319,981.56 and 129,881.40
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Solution
The fourth proportional to 231,862.08, 319,981.56 and 129,881.40 is: 179,242.99
Step by Step Solution
- Step 1: Write the proportion equation
231,862.08 : 319,981.56 = 129,881.40 : x - Step 2: Convert to fraction form
231,862.08/319,981.56 = 129,881.40/x - Step 3: Cross multiply
231,862.08x = 319,981.56 × 129,881.40 - Step 4: Simplify right side
231,862.08x = 41,559,652,986.98 - Step 5: Solve for x
x = 41,559,652,986.98/231,862.08 - Step 6: Final answer
x = 179,242.99
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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.