Finding the Fourth Proportional to 257,905.87, 355,935.68 and 144,729.07
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Solution
The fourth proportional to 257,905.87, 355,935.68 and 144,729.07 is: 199,740.47
Step by Step Solution
- Step 1: Write the proportion equation
257,905.87 : 355,935.68 = 144,729.07 : x - Step 2: Convert to fraction form
257,905.87/355,935.68 = 144,729.07/x - Step 3: Cross multiply
257,905.87x = 355,935.68 × 144,729.07 - Step 4: Simplify right side
257,905.87x = 51,514,239,222.57 - Step 5: Solve for x
x = 51,514,239,222.57/257,905.87 - Step 6: Final answer
x = 199,740.47
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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.