Finding the Fourth Proportional to 251,702.36, 347,349.06 and 138,525.20
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Solution
The fourth proportional to 251,702.36, 347,349.06 and 138,525.20 is: 191,164.67
Step by Step Solution
- Step 1: Write the proportion equation
251,702.36 : 347,349.06 = 138,525.20 : x - Step 2: Convert to fraction form
251,702.36/347,349.06 = 138,525.20/x - Step 3: Cross multiply
251,702.36x = 347,349.06 × 138,525.20 - Step 4: Simplify right side
251,702.36x = 48,116,598,006.31 - Step 5: Solve for x
x = 48,116,598,006.31/251,702.36 - Step 6: Final answer
x = 191,164.67
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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.