Finding the Fourth Proportional to 177,724.80, 266,486.40 and 72,420.48
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Solution
The fourth proportional to 177,724.80, 266,486.40 and 72,420.48 is: 108,589.65
Step by Step Solution
- Step 1: Write the proportion equation
177,724.80 : 266,486.40 = 72,420.48 : x - Step 2: Convert to fraction form
177,724.80/266,486.40 = 72,420.48/x - Step 3: Cross multiply
177,724.80x = 266,486.40 × 72,420.48 - Step 4: Simplify right side
177,724.80x = 19,299,073,001.47 - Step 5: Solve for x
x = 19,299,073,001.47/177,724.80 - Step 6: Final answer
x = 108,589.65
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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.