Finding the Fourth Proportional to 212,154.96, 292,700.98 and 131,553.48
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Solution
The fourth proportional to 212,154.96, 292,700.98 and 131,553.48 is: 181,498.62
Step by Step Solution
- Step 1: Write the proportion equation
212,154.96 : 292,700.98 = 131,553.48 : x - Step 2: Convert to fraction form
212,154.96/292,700.98 = 131,553.48/x - Step 3: Cross multiply
212,154.96x = 292,700.98 × 131,553.48 - Step 4: Simplify right side
212,154.96x = 38,505,832,518.41 - Step 5: Solve for x
x = 38,505,832,518.41/212,154.96 - Step 6: Final answer
x = 181,498.62
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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.