Finding the Fourth Proportional to 319,670.36, 441,142.93 and 176,430.40
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Solution
The fourth proportional to 319,670.36, 441,142.93 and 176,430.40 is: 243,472.75
Step by Step Solution
- Step 1: Write the proportion equation
319,670.36 : 441,142.93 = 176,430.40 : x - Step 2: Convert to fraction form
319,670.36/441,142.93 = 176,430.40/x - Step 3: Cross multiply
319,670.36x = 441,142.93 × 176,430.40 - Step 4: Simplify right side
319,670.36x = 77,831,022,714.92 - Step 5: Solve for x
x = 77,831,022,714.92/319,670.36 - Step 6: Final answer
x = 243,472.75
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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.