Finding the Fourth Proportional to 316,989.19, 437,455.92 and 173,749.20
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Solution
The fourth proportional to 316,989.19, 437,455.92 and 173,749.20 is: 239,779.84
Step by Step Solution
- Step 1: Write the proportion equation
316,989.19 : 437,455.92 = 173,749.20 : x - Step 2: Convert to fraction form
316,989.19/437,455.92 = 173,749.20/x - Step 3: Cross multiply
316,989.19x = 437,455.92 × 173,749.20 - Step 4: Simplify right side
316,989.19x = 76,007,616,135.26 - Step 5: Solve for x
x = 76,007,616,135.26/316,989.19 - Step 6: Final answer
x = 239,779.84
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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.