Finding the Fourth Proportional to 387,330.79, 534,428.91 and 234,365.18
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Solution
The fourth proportional to 387,330.79, 534,428.91 and 234,365.18 is: 323,370.95
Step by Step Solution
- Step 1: Write the proportion equation
387,330.79 : 534,428.91 = 234,365.18 : x - Step 2: Convert to fraction form
387,330.79/534,428.91 = 234,365.18/x - Step 3: Cross multiply
387,330.79x = 534,428.91 × 234,365.18 - Step 4: Simplify right side
387,330.79x = 125,251,525,896.08 - Step 5: Solve for x
x = 125,251,525,896.08/387,330.79 - Step 6: Final answer
x = 323,370.95
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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.