Finding the Fourth Proportional to 225,259.98, 310,859.60 and 121,894.18
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Solution
The fourth proportional to 225,259.98, 310,859.60 and 121,894.18 is: 168,214.42
Step by Step Solution
- Step 1: Write the proportion equation
225,259.98 : 310,859.60 = 121,894.18 : x - Step 2: Convert to fraction form
225,259.98/310,859.60 = 121,894.18/x - Step 3: Cross multiply
225,259.98x = 310,859.60 × 121,894.18 - Step 4: Simplify right side
225,259.98x = 37,891,976,037.13 - Step 5: Solve for x
x = 37,891,976,037.13/225,259.98 - Step 6: Final answer
x = 168,214.42
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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.