Finding the Fourth Proportional to 265,612.80, 398,417.52 and 107,839.68
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Solution
The fourth proportional to 265,612.80, 398,417.52 and 107,839.68 is: 161,758.84
Step by Step Solution
- Step 1: Write the proportion equation
265,612.80 : 398,417.52 = 107,839.68 : x - Step 2: Convert to fraction form
265,612.80/398,417.52 = 107,839.68/x - Step 3: Cross multiply
265,612.80x = 398,417.52 × 107,839.68 - Step 4: Simplify right side
265,612.80x = 42,965,217,863.19 - Step 5: Solve for x
x = 42,965,217,863.19/265,612.80 - Step 6: Final answer
x = 161,758.84
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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.