Finding the Fourth Proportional to 285,195.12, 393,552.36 and 157,863.12
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Solution
The fourth proportional to 285,195.12, 393,552.36 and 157,863.12 is: 217,841.75
Step by Step Solution
- Step 1: Write the proportion equation
285,195.12 : 393,552.36 = 157,863.12 : x - Step 2: Convert to fraction form
285,195.12/393,552.36 = 157,863.12/x - Step 3: Cross multiply
285,195.12x = 393,552.36 × 157,863.12 - Step 4: Simplify right side
285,195.12x = 62,127,403,432.96 - Step 5: Solve for x
x = 62,127,403,432.96/285,195.12 - Step 6: Final answer
x = 217,841.75
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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.