Finding the Fourth Proportional to 351,454.19, 485,042.58 and 253,418.07
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Solution
The fourth proportional to 351,454.19, 485,042.58 and 253,418.07 is: 349,742.75
Step by Step Solution
- Step 1: Write the proportion equation
351,454.19 : 485,042.58 = 253,418.07 : x - Step 2: Convert to fraction form
351,454.19/485,042.58 = 253,418.07/x - Step 3: Cross multiply
351,454.19x = 485,042.58 × 253,418.07 - Step 4: Simplify right side
351,454.19x = 122,918,554,491.42 - Step 5: Solve for x
x = 122,918,554,491.42/351,454.19 - Step 6: Final answer
x = 349,742.75
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1.5x scale
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.