Finding the Fourth Proportional to 286,543.79, 395,307.77 and 178,926.99
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Solution
The fourth proportional to 286,543.79, 395,307.77 and 178,926.99 is: 246,842.65
Step by Step Solution
- Step 1: Write the proportion equation
286,543.79 : 395,307.77 = 178,926.99 : x - Step 2: Convert to fraction form
286,543.79/395,307.77 = 178,926.99/x - Step 3: Cross multiply
286,543.79x = 395,307.77 × 178,926.99 - Step 4: Simplify right side
286,543.79x = 70,731,229,409.71 - Step 5: Solve for x
x = 70,731,229,409.71/286,543.79 - Step 6: Final answer
x = 246,842.65
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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.