Finding the Fourth Proportional to 149,530.28, 206,351.18 and 81,547.09
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Solution
The fourth proportional to 149,530.28, 206,351.18 and 81,547.09 is: 112,534.65
Step by Step Solution
- Step 1: Write the proportion equation
149,530.28 : 206,351.18 = 81,547.09 : x - Step 2: Convert to fraction form
149,530.28/206,351.18 = 81,547.09/x - Step 3: Cross multiply
149,530.28x = 206,351.18 × 81,547.09 - Step 4: Simplify right side
149,530.28x = 16,827,337,323.45 - Step 5: Solve for x
x = 16,827,337,323.45/149,530.28 - Step 6: Final answer
x = 112,534.65
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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.