Finding the Fourth Proportional to 387,752.06, 535,092.62 and 217,986.14
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Solution
The fourth proportional to 387,752.06, 535,092.62 and 217,986.14 is: 300,817.94
Step by Step Solution
- Step 1: Write the proportion equation
387,752.06 : 535,092.62 = 217,986.14 : x - Step 2: Convert to fraction form
387,752.06/535,092.62 = 217,986.14/x - Step 3: Cross multiply
387,752.06x = 535,092.62 × 217,986.14 - Step 4: Simplify right side
387,752.06x = 116,642,774,776.29 - Step 5: Solve for x
x = 116,642,774,776.29/387,752.06 - Step 6: Final answer
x = 300,817.94
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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.