Finding the Fourth Proportional to 386,467.94, 533,328.98 and 214,397.18
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Solution
The fourth proportional to 386,467.94, 533,328.98 and 214,397.18 is: 295,869.89
Step by Step Solution
- Step 1: Write the proportion equation
386,467.94 : 533,328.98 = 214,397.18 : x - Step 2: Convert to fraction form
386,467.94/533,328.98 = 214,397.18/x - Step 3: Cross multiply
386,467.94x = 533,328.98 × 214,397.18 - Step 4: Simplify right side
386,467.94x = 114,344,227,585.63 - Step 5: Solve for x
x = 114,344,227,585.63/386,467.94 - Step 6: Final answer
x = 295,869.89
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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.