Finding the Fourth Proportional to 178,972.84, 268,459.26 and 73,789.07
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Solution
The fourth proportional to 178,972.84, 268,459.26 and 73,789.07 is: 110,683.61
Step by Step Solution
- Step 1: Write the proportion equation
178,972.84 : 268,459.26 = 73,789.07 : x - Step 2: Convert to fraction form
178,972.84/268,459.26 = 73,789.07/x - Step 3: Cross multiply
178,972.84x = 268,459.26 × 73,789.07 - Step 4: Simplify right side
178,972.84x = 19,809,359,128.29 - Step 5: Solve for x
x = 19,809,359,128.29/178,972.84 - Step 6: Final answer
x = 110,683.61
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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.