Finding the Fourth Proportional to 421,925.40, 582,252.12 and 228,328.62
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Solution
The fourth proportional to 421,925.40, 582,252.12 and 228,328.62 is: 315,090.83
Step by Step Solution
- Step 1: Write the proportion equation
421,925.40 : 582,252.12 = 228,328.62 : x - Step 2: Convert to fraction form
421,925.40/582,252.12 = 228,328.62/x - Step 3: Cross multiply
421,925.40x = 582,252.12 × 228,328.62 - Step 4: Simplify right side
421,925.40x = 132,944,823,051.67 - Step 5: Solve for x
x = 132,944,823,051.67/421,925.40 - Step 6: Final answer
x = 315,090.83
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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.