Finding the Fourth Proportional to 418,621.10, 577,685.12 and 237,350.40
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Solution
The fourth proportional to 418,621.10, 577,685.12 and 237,350.40 is: 327,536.75
Step by Step Solution
- Step 1: Write the proportion equation
418,621.10 : 577,685.12 = 237,350.40 : x - Step 2: Convert to fraction form
418,621.10/577,685.12 = 237,350.40/x - Step 3: Cross multiply
418,621.10x = 577,685.12 × 237,350.40 - Step 4: Simplify right side
418,621.10x = 137,113,794,306.05 - Step 5: Solve for x
x = 137,113,794,306.05/418,621.10 - Step 6: Final answer
x = 327,536.75
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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.