Finding the Fourth Proportional to 399,447.84, 551,283.12 and 227,408.16
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Solution
The fourth proportional to 399,447.84, 551,283.12 and 227,408.16 is: 313,848.94
Step by Step Solution
- Step 1: Write the proportion equation
399,447.84 : 551,283.12 = 227,408.16 : x - Step 2: Convert to fraction form
399,447.84/551,283.12 = 227,408.16/x - Step 3: Cross multiply
399,447.84x = 551,283.12 × 227,408.16 - Step 4: Simplify right side
399,447.84x = 125,366,279,958.26 - Step 5: Solve for x
x = 125,366,279,958.26/399,447.84 - Step 6: Final answer
x = 313,848.94
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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.