Finding the Fourth Proportional to 279,277.47, 385,405.29 and 158,418.99
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Solution
The fourth proportional to 279,277.47, 385,405.29 and 158,418.99 is: 218,619.56
Step by Step Solution
- Step 1: Write the proportion equation
279,277.47 : 385,405.29 = 158,418.99 : x - Step 2: Convert to fraction form
279,277.47/385,405.29 = 158,418.99/x - Step 3: Cross multiply
279,277.47x = 385,405.29 × 158,418.99 - Step 4: Simplify right side
279,277.47x = 61,055,516,782.46 - Step 5: Solve for x
x = 61,055,516,782.46/279,277.47 - Step 6: Final answer
x = 218,619.56
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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.