Finding the Fourth Proportional to 312,720.94, 431,553.81 and 169,484.50
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Solution
The fourth proportional to 312,720.94, 431,553.81 and 169,484.50 is: 233,888.02
Step by Step Solution
- Step 1: Write the proportion equation
312,720.94 : 431,553.81 = 169,484.50 : x - Step 2: Convert to fraction form
312,720.94/431,553.81 = 169,484.50/x - Step 3: Cross multiply
312,720.94x = 431,553.81 × 169,484.50 - Step 4: Simplify right side
312,720.94x = 73,141,681,710.95 - Step 5: Solve for x
x = 73,141,681,710.95/312,720.94 - Step 6: Final answer
x = 233,888.02
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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.