Finding the Fourth Proportional to 230,585.77, 318,208.79 and 128,617.84
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Solution
The fourth proportional to 230,585.77, 318,208.79 and 128,617.84 is: 177,492.86
Step by Step Solution
- Step 1: Write the proportion equation
230,585.77 : 318,208.79 = 128,617.84 : x - Step 2: Convert to fraction form
230,585.77/318,208.79 = 128,617.84/x - Step 3: Cross multiply
230,585.77x = 318,208.79 × 128,617.84 - Step 4: Simplify right side
230,585.77x = 40,927,327,238.81 - Step 5: Solve for x
x = 40,927,327,238.81/230,585.77 - Step 6: Final answer
x = 177,492.86
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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.