Finding the Fourth Proportional to 319,442.78, 440,813.71 and 183,476.76
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Solution
The fourth proportional to 319,442.78, 440,813.71 and 183,476.76 is: 253,187.99
Step by Step Solution
- Step 1: Write the proportion equation
319,442.78 : 440,813.71 = 183,476.76 : x - Step 2: Convert to fraction form
319,442.78/440,813.71 = 183,476.76/x - Step 3: Cross multiply
319,442.78x = 440,813.71 × 183,476.76 - Step 4: Simplify right side
319,442.78x = 80,879,074,086.07 - Step 5: Solve for x
x = 80,879,074,086.07/319,442.78 - Step 6: Final answer
x = 253,187.99
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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.