Finding the Fourth Proportional to 207,916.38, 286,924.77 and 112,423.14
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Solution
The fourth proportional to 207,916.38, 286,924.77 and 112,423.14 is: 155,144.02
Step by Step Solution
- Step 1: Write the proportion equation
207,916.38 : 286,924.77 = 112,423.14 : x - Step 2: Convert to fraction form
207,916.38/286,924.77 = 112,423.14/x - Step 3: Cross multiply
207,916.38x = 286,924.77 × 112,423.14 - Step 4: Simplify right side
207,916.38x = 32,256,983,587.18 - Step 5: Solve for x
x = 32,256,983,587.18/207,916.38 - Step 6: Final answer
x = 155,144.02
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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.