Finding the Fourth Proportional to 611,407.08, 917,095.26 and 212,333.80
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Solution
The fourth proportional to 611,407.08, 917,095.26 and 212,333.80 is: 318,495.37
Step by Step Solution
- Step 1: Write the proportion equation
611,407.08 : 917,095.26 = 212,333.80 : x - Step 2: Convert to fraction form
611,407.08/917,095.26 = 212,333.80/x - Step 3: Cross multiply
611,407.08x = 917,095.26 × 212,333.80 - Step 4: Simplify right side
611,407.08x = 194,730,321,517.79 - Step 5: Solve for x
x = 194,730,321,517.79/611,407.08 - Step 6: Final answer
x = 318,495.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.