Finding the Fourth Proportional to 205,903.20, 284,125.68 and 115,253.28
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Solution
The fourth proportional to 205,903.20, 284,125.68 and 115,253.28 is: 159,037.92
Step by Step Solution
- Step 1: Write the proportion equation
205,903.20 : 284,125.68 = 115,253.28 : x - Step 2: Convert to fraction form
205,903.20/284,125.68 = 115,253.28/x - Step 3: Cross multiply
205,903.20x = 284,125.68 × 115,253.28 - Step 4: Simplify right side
205,903.20x = 32,746,416,552.23 - Step 5: Solve for x
x = 32,746,416,552.23/205,903.20 - Step 6: Final answer
x = 159,037.92
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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.