Finding the Fourth Proportional to 392,296.91, 540,338.51 and 301,478.99
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Solution
The fourth proportional to 392,296.91, 540,338.51 and 301,478.99 is: 415,248.51
Step by Step Solution
- Step 1: Write the proportion equation
392,296.91 : 540,338.51 = 301,478.99 : x - Step 2: Convert to fraction form
392,296.91/540,338.51 = 301,478.99/x - Step 3: Cross multiply
392,296.91x = 540,338.51 × 301,478.99 - Step 4: Simplify right side
392,296.91x = 162,900,706,745.51 - Step 5: Solve for x
x = 162,900,706,745.51/392,296.91 - Step 6: Final answer
x = 415,248.51
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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.