Finding the Fourth Proportional to 286,652.17, 395,577.66 and 155,828.98
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Solution
The fourth proportional to 286,652.17, 395,577.66 and 155,828.98 is: 215,042.72
Step by Step Solution
- Step 1: Write the proportion equation
286,652.17 : 395,577.66 = 155,828.98 : x - Step 2: Convert to fraction form
286,652.17/395,577.66 = 155,828.98/x - Step 3: Cross multiply
286,652.17x = 395,577.66 × 155,828.98 - Step 4: Simplify right side
286,652.17x = 61,642,463,268.59 - Step 5: Solve for x
x = 61,642,463,268.59/286,652.17 - Step 6: Final answer
x = 215,042.72
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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.