Finding the Fourth Proportional to 351,388.80, 485,733.71 and 313,523.63
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Solution
The fourth proportional to 351,388.80, 485,733.71 and 313,523.63 is: 433,391.72
Step by Step Solution
- Step 1: Write the proportion equation
351,388.80 : 485,733.71 = 313,523.63 : x - Step 2: Convert to fraction form
351,388.80/485,733.71 = 313,523.63/x - Step 3: Cross multiply
351,388.80x = 485,733.71 × 313,523.63 - Step 4: Simplify right side
351,388.80x = 152,288,996,149.21 - Step 5: Solve for x
x = 152,288,996,149.21/351,388.80 - Step 6: Final answer
x = 433,391.72
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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.