Finding the Fourth Proportional to 185,705.10, 278,358.84 and 85,748.94
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Solution
The fourth proportional to 185,705.10, 278,358.84 and 85,748.94 is: 128,531.61
Step by Step Solution
- Step 1: Write the proportion equation
185,705.10 : 278,358.84 = 85,748.94 : x - Step 2: Convert to fraction form
185,705.10/278,358.84 = 85,748.94/x - Step 3: Cross multiply
185,705.10x = 278,358.84 × 85,748.94 - Step 4: Simplify right side
185,705.10x = 23,868,975,469.63 - Step 5: Solve for x
x = 23,868,975,469.63/185,705.10 - Step 6: Final answer
x = 128,531.61
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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.