Finding the Fourth Proportional to 400,894.18, 553,234.11 and 219,612.61
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Solution
The fourth proportional to 400,894.18, 553,234.11 and 219,612.61 is: 303,065.48
Step by Step Solution
- Step 1: Write the proportion equation
400,894.18 : 553,234.11 = 219,612.61 : x - Step 2: Convert to fraction form
400,894.18/553,234.11 = 219,612.61/x - Step 3: Cross multiply
400,894.18x = 553,234.11 × 219,612.61 - Step 4: Simplify right side
400,894.18x = 121,497,186,838.13 - Step 5: Solve for x
x = 121,497,186,838.13/400,894.18 - Step 6: Final answer
x = 303,065.48
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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.