Finding the Fourth Proportional to 261,577.86, 392,643.27 and 121,471.62
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Solution
The fourth proportional to 261,577.86, 392,643.27 and 121,471.62 is: 182,335.82
Step by Step Solution
- Step 1: Write the proportion equation
261,577.86 : 392,643.27 = 121,471.62 : x - Step 2: Convert to fraction form
261,577.86/392,643.27 = 121,471.62/x - Step 3: Cross multiply
261,577.86x = 392,643.27 × 121,471.62 - Step 4: Simplify right side
261,577.86x = 47,695,014,089.00 - Step 5: Solve for x
x = 47,695,014,089.00/261,577.86 - Step 6: Final answer
x = 182,335.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.