Finding the Fourth Proportional to 351,755.01, 485,675.55 and 215,973.09
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Solution
The fourth proportional to 351,755.01, 485,675.55 and 215,973.09 is: 298,198.59
Step by Step Solution
- Step 1: Write the proportion equation
351,755.01 : 485,675.55 = 215,973.09 : x - Step 2: Convert to fraction form
351,755.01/485,675.55 = 215,973.09/x - Step 3: Cross multiply
351,755.01x = 485,675.55 × 215,973.09 - Step 4: Simplify right side
351,755.01x = 104,892,849,270.95 - Step 5: Solve for x
x = 104,892,849,270.95/351,755.01 - Step 6: Final answer
x = 298,198.59
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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.