Finding the Fourth Proportional to 389,908.02, 537,767.28 and 253,984.74
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Solution
The fourth proportional to 389,908.02, 537,767.28 and 253,984.74 is: 350,299.75
Step by Step Solution
- Step 1: Write the proportion equation
389,908.02 : 537,767.28 = 253,984.74 : x - Step 2: Convert to fraction form
389,908.02/537,767.28 = 253,984.74/x - Step 3: Cross multiply
389,908.02x = 537,767.28 × 253,984.74 - Step 4: Simplify right side
389,908.02x = 136,584,682,791.31 - Step 5: Solve for x
x = 136,584,682,791.31/389,908.02 - Step 6: Final answer
x = 350,299.75
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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.