Finding the Fourth Proportional to 208,840.19, 288,199.67 and 113,346.93
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Solution
The fourth proportional to 208,840.19, 288,199.67 and 113,346.93 is: 156,418.88
Step by Step Solution
- Step 1: Write the proportion equation
208,840.19 : 288,199.67 = 113,346.93 : x - Step 2: Convert to fraction form
208,840.19/288,199.67 = 113,346.93/x - Step 3: Cross multiply
208,840.19x = 288,199.67 × 113,346.93 - Step 4: Simplify right side
208,840.19x = 32,666,547,254.78 - Step 5: Solve for x
x = 32,666,547,254.78/208,840.19 - Step 6: Final answer
x = 156,418.88
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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.