Finding the Fourth Proportional to 318,093.63, 438,970.12 and 182,129.67
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Solution
The fourth proportional to 318,093.63, 438,970.12 and 182,129.67 is: 251,339.47
Step by Step Solution
- Step 1: Write the proportion equation
318,093.63 : 438,970.12 = 182,129.67 : x - Step 2: Convert to fraction form
318,093.63/438,970.12 = 182,129.67/x - Step 3: Cross multiply
318,093.63x = 438,970.12 × 182,129.67 - Step 4: Simplify right side
318,093.63x = 79,949,483,095.46 - Step 5: Solve for x
x = 79,949,483,095.46/318,093.63 - Step 6: Final answer
x = 251,339.47
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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.