Finding the Fourth Proportional to 225,305.12, 310,990.24 and 129,875.52
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Solution
The fourth proportional to 225,305.12, 310,990.24 and 129,875.52 is: 179,268.09
Step by Step Solution
- Step 1: Write the proportion equation
225,305.12 : 310,990.24 = 129,875.52 : x - Step 2: Convert to fraction form
225,305.12/310,990.24 = 129,875.52/x - Step 3: Cross multiply
225,305.12x = 310,990.24 × 129,875.52 - Step 4: Simplify right side
225,305.12x = 40,390,019,134.92 - Step 5: Solve for x
x = 40,390,019,134.92/225,305.12 - Step 6: Final answer
x = 179,268.09
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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.