Finding the Fourth Proportional to 230,534.10, 318,168.09 and 135,078.84
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Solution
The fourth proportional to 230,534.10, 318,168.09 and 135,078.84 is: 186,426.98
Step by Step Solution
- Step 1: Write the proportion equation
230,534.10 : 318,168.09 = 135,078.84 : x - Step 2: Convert to fraction form
230,534.10/318,168.09 = 135,078.84/x - Step 3: Cross multiply
230,534.10x = 318,168.09 × 135,078.84 - Step 4: Simplify right side
230,534.10x = 42,977,776,522.22 - Step 5: Solve for x
x = 42,977,776,522.22/230,534.10 - Step 6: Final answer
x = 186,426.98
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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.