Finding the Fourth Proportional to 313,493.48, 432,753.36 and 211,656.80
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Solution
The fourth proportional to 313,493.48, 432,753.36 and 211,656.80 is: 292,175.75
Step by Step Solution
- Step 1: Write the proportion equation
313,493.48 : 432,753.36 = 211,656.80 : x - Step 2: Convert to fraction form
313,493.48/432,753.36 = 211,656.80/x - Step 3: Cross multiply
313,493.48x = 432,753.36 × 211,656.80 - Step 4: Simplify right side
313,493.48x = 91,595,191,366.85 - Step 5: Solve for x
x = 91,595,191,366.85/313,493.48 - Step 6: Final answer
x = 292,175.75
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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.