Finding the Fourth Proportional to 234,439.12, 323,549.64 and 138,961.36
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Solution
The fourth proportional to 234,439.12, 323,549.64 and 138,961.36 is: 191,780.70
Step by Step Solution
- Step 1: Write the proportion equation
234,439.12 : 323,549.64 = 138,961.36 : x - Step 2: Convert to fraction form
234,439.12/323,549.64 = 138,961.36/x - Step 3: Cross multiply
234,439.12x = 323,549.64 × 138,961.36 - Step 4: Simplify right side
234,439.12x = 44,960,898,001.91 - Step 5: Solve for x
x = 44,960,898,001.91/234,439.12 - Step 6: Final answer
x = 191,780.70
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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.