Finding the Fourth Proportional to 284,689.68, 392,854.68 and 157,357.68
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Solution
The fourth proportional to 284,689.68, 392,854.68 and 157,357.68 is: 217,144.16
Step by Step Solution
- Step 1: Write the proportion equation
284,689.68 : 392,854.68 = 157,357.68 : x - Step 2: Convert to fraction form
284,689.68/392,854.68 = 157,357.68/x - Step 3: Cross multiply
284,689.68x = 392,854.68 × 157,357.68 - Step 4: Simplify right side
284,689.68x = 61,818,701,021.94 - Step 5: Solve for x
x = 61,818,701,021.94/284,689.68 - Step 6: Final answer
x = 217,144.16
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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.