Finding the Fourth Proportional to 286,542.79, 395,306.39 and 178,925.99
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Solution
The fourth proportional to 286,542.79, 395,306.39 and 178,925.99 is: 246,841.27
Step by Step Solution
- Step 1: Write the proportion equation
286,542.79 : 395,306.39 = 178,925.99 : x - Step 2: Convert to fraction form
286,542.79/395,306.39 = 178,925.99/x - Step 3: Cross multiply
286,542.79x = 395,306.39 × 178,925.99 - Step 4: Simplify right side
286,542.79x = 70,730,585,654.86 - Step 5: Solve for x
x = 70,730,585,654.86/286,542.79 - Step 6: Final answer
x = 246,841.27
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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.