Finding the Fourth Proportional to 331,328.60, 497,138.70 and 153,744.20
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Solution
The fourth proportional to 331,328.60, 497,138.70 and 153,744.20 is: 230,683.95
Step by Step Solution
- Step 1: Write the proportion equation
331,328.60 : 497,138.70 = 153,744.20 : x - Step 2: Convert to fraction form
331,328.60/497,138.70 = 153,744.20/x - Step 3: Cross multiply
331,328.60x = 497,138.70 × 153,744.20 - Step 4: Simplify right side
331,328.60x = 76,432,191,720.54 - Step 5: Solve for x
x = 76,432,191,720.54/331,328.60 - Step 6: Final answer
x = 230,683.95
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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.