Finding the Fourth Proportional to 312,185.95, 430,828.94 and 176,224.75
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Solution
The fourth proportional to 312,185.95, 430,828.94 and 176,224.75 is: 243,197.11
Step by Step Solution
- Step 1: Write the proportion equation
312,185.95 : 430,828.94 = 176,224.75 : x - Step 2: Convert to fraction form
312,185.95/430,828.94 = 176,224.75/x - Step 3: Cross multiply
312,185.95x = 430,828.94 × 176,224.75 - Step 4: Simplify right side
312,185.95x = 75,922,721,607.75 - Step 5: Solve for x
x = 75,922,721,607.75/312,185.95 - Step 6: Final answer
x = 243,197.11
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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.