Finding the Fourth Proportional to 399,307.48, 551,036.93 and 227,221.63
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Solution
The fourth proportional to 399,307.48, 551,036.93 and 227,221.63 is: 313,561.64
Step by Step Solution
- Step 1: Write the proportion equation
399,307.48 : 551,036.93 = 227,221.63 : x - Step 2: Convert to fraction form
399,307.48/551,036.93 = 227,221.63/x - Step 3: Cross multiply
399,307.48x = 551,036.93 × 227,221.63 - Step 4: Simplify right side
399,307.48x = 125,207,509,992.85 - Step 5: Solve for x
x = 125,207,509,992.85/399,307.48 - Step 6: Final answer
x = 313,561.64
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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.