Finding the Fourth Proportional to 418,627.35, 577,699.16 and 227,639.07
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Solution
The fourth proportional to 418,627.35, 577,699.16 and 227,639.07 is: 314,138.33
Step by Step Solution
- Step 1: Write the proportion equation
418,627.35 : 577,699.16 = 227,639.07 : x - Step 2: Convert to fraction form
418,627.35/577,699.16 = 227,639.07/x - Step 3: Cross multiply
418,627.35x = 577,699.16 × 227,639.07 - Step 4: Simplify right side
418,627.35x = 131,506,898,383.99 - Step 5: Solve for x
x = 131,506,898,383.99/418,627.35 - Step 6: Final answer
x = 314,138.33
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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.