Finding the Fourth Proportional to 178,937.13, 268,407.31 and 54,278.13
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Solution
The fourth proportional to 178,937.13, 268,407.31 and 54,278.13 is: 81,417.68
Step by Step Solution
- Step 1: Write the proportion equation
178,937.13 : 268,407.31 = 54,278.13 : x - Step 2: Convert to fraction form
178,937.13/268,407.31 = 54,278.13/x - Step 3: Cross multiply
178,937.13x = 268,407.31 × 54,278.13 - Step 4: Simplify right side
178,937.13x = 14,568,646,865.13 - Step 5: Solve for x
x = 14,568,646,865.13/178,937.13 - Step 6: Final answer
x = 81,417.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.