Finding the Fourth Proportional to 328,777.12, 453,712.62 and 228,233.44
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Solution
The fourth proportional to 328,777.12, 453,712.62 and 228,233.44 is: 314,962.28
Step by Step Solution
- Step 1: Write the proportion equation
328,777.12 : 453,712.62 = 228,233.44 : x - Step 2: Convert to fraction form
328,777.12/453,712.62 = 228,233.44/x - Step 3: Cross multiply
328,777.12x = 453,712.62 × 228,233.44 - Step 4: Simplify right side
328,777.12x = 103,552,392,034.01 - Step 5: Solve for x
x = 103,552,392,034.01/328,777.12 - Step 6: Final answer
x = 314,962.28
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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.