Finding the Fourth Proportional to 374,025.60, 515,621.70 and 230,689.62
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Solution
The fourth proportional to 374,025.60, 515,621.70 and 230,689.62 is: 318,022.55
Step by Step Solution
- Step 1: Write the proportion equation
374,025.60 : 515,621.70 = 230,689.62 : x - Step 2: Convert to fraction form
374,025.60/515,621.70 = 230,689.62/x - Step 3: Cross multiply
374,025.60x = 515,621.70 × 230,689.62 - Step 4: Simplify right side
374,025.60x = 118,948,574,036.75 - Step 5: Solve for x
x = 118,948,574,036.75/374,025.60 - Step 6: Final answer
x = 318,022.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.