Finding the Fourth Proportional to 380,071.97, 524,463.59 and 257,314.62
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Solution
The fourth proportional to 380,071.97, 524,463.59 and 257,314.62 is: 355,069.99
Step by Step Solution
- Step 1: Write the proportion equation
380,071.97 : 524,463.59 = 257,314.62 : x - Step 2: Convert to fraction form
380,071.97/524,463.59 = 257,314.62/x - Step 3: Cross multiply
380,071.97x = 524,463.59 × 257,314.62 - Step 4: Simplify right side
380,071.97x = 134,952,148,078.11 - Step 5: Solve for x
x = 134,952,148,078.11/380,071.97 - Step 6: Final answer
x = 355,069.99
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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.