Finding the Fourth Proportional to 393,463.08, 542,980.74 and 214,618.92
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Solution
The fourth proportional to 393,463.08, 542,980.74 and 214,618.92 is: 296,175.03
Step by Step Solution
- Step 1: Write the proportion equation
393,463.08 : 542,980.74 = 214,618.92 : x - Step 2: Convert to fraction form
393,463.08/542,980.74 = 214,618.92/x - Step 3: Cross multiply
393,463.08x = 542,980.74 × 214,618.92 - Step 4: Simplify right side
393,463.08x = 116,533,939,999.60 - Step 5: Solve for x
x = 116,533,939,999.60/393,463.08 - Step 6: Final answer
x = 296,175.03
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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.