Finding the Fourth Proportional to 418,138.42, 577,035.94 and 227,154.82
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Solution
The fourth proportional to 418,138.42, 577,035.94 and 227,154.82 is: 313,476.32
Step by Step Solution
- Step 1: Write the proportion equation
418,138.42 : 577,035.94 = 227,154.82 : x - Step 2: Convert to fraction form
418,138.42/577,035.94 = 227,154.82/x - Step 3: Cross multiply
418,138.42x = 577,035.94 × 227,154.82 - Step 4: Simplify right side
418,138.42x = 131,076,495,084.23 - Step 5: Solve for x
x = 131,076,495,084.23/418,138.42 - Step 6: Final answer
x = 313,476.32
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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.