Finding the Fourth Proportional to 257,307.44, 355,080.12 and 144,129.84
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Solution
The fourth proportional to 257,307.44, 355,080.12 and 144,129.84 is: 198,896.86
Step by Step Solution
- Step 1: Write the proportion equation
257,307.44 : 355,080.12 = 144,129.84 : x - Step 2: Convert to fraction form
257,307.44/355,080.12 = 144,129.84/x - Step 3: Cross multiply
257,307.44x = 355,080.12 × 144,129.84 - Step 4: Simplify right side
257,307.44x = 51,177,640,882.78 - Step 5: Solve for x
x = 51,177,640,882.78/257,307.44 - Step 6: Final answer
x = 198,896.86
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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.