Finding the Fourth Proportional to 187,508.48, 281,307.84 and 76,700.80
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Solution
The fourth proportional to 187,508.48, 281,307.84 and 76,700.80 is: 115,069.66
Step by Step Solution
- Step 1: Write the proportion equation
187,508.48 : 281,307.84 = 76,700.80 : x - Step 2: Convert to fraction form
187,508.48/281,307.84 = 76,700.80/x - Step 3: Cross multiply
187,508.48x = 281,307.84 × 76,700.80 - Step 4: Simplify right side
187,508.48x = 21,576,536,374.27 - Step 5: Solve for x
x = 21,576,536,374.27/187,508.48 - Step 6: Final answer
x = 115,069.66
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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.