Finding the Fourth Proportional to 305,298.18, 421,035.68 and 190,587.47
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Solution
The fourth proportional to 305,298.18, 421,035.68 and 190,587.47 is: 262,838.53
Step by Step Solution
- Step 1: Write the proportion equation
305,298.18 : 421,035.68 = 190,587.47 : x - Step 2: Convert to fraction form
305,298.18/421,035.68 = 190,587.47/x - Step 3: Cross multiply
305,298.18x = 421,035.68 × 190,587.47 - Step 4: Simplify right side
305,298.18x = 80,244,123,402.22 - Step 5: Solve for x
x = 80,244,123,402.22/305,298.18 - Step 6: Final answer
x = 262,838.53
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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.