Finding the Fourth Proportional to 386,891.65, 533,927.15 and 214,809.62
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Solution
The fourth proportional to 386,891.65, 533,927.15 and 214,809.62 is: 296,446.53
Step by Step Solution
- Step 1: Write the proportion equation
386,891.65 : 533,927.15 = 214,809.62 : x - Step 2: Convert to fraction form
386,891.65/533,927.15 = 214,809.62/x - Step 3: Cross multiply
386,891.65x = 533,927.15 × 214,809.62 - Step 4: Simplify right side
386,891.65x = 114,692,688,199.18 - Step 5: Solve for x
x = 114,692,688,199.18/386,891.65 - Step 6: Final answer
x = 296,446.53
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1.5x scale
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.