Finding the Fourth Proportional to 261,577.76, 392,267.05 and 154,991.80
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Solution
The fourth proportional to 261,577.76, 392,267.05 and 154,991.80 is: 232,428.69
Step by Step Solution
- Step 1: Write the proportion equation
261,577.76 : 392,267.05 = 154,991.80 : x - Step 2: Convert to fraction form
261,577.76/392,267.05 = 154,991.80/x - Step 3: Cross multiply
261,577.76x = 392,267.05 × 154,991.80 - Step 4: Simplify right side
261,577.76x = 60,798,176,160.19 - Step 5: Solve for x
x = 60,798,176,160.19/261,577.76 - Step 6: Final answer
x = 232,428.69
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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.