Finding the Fourth Proportional to 168,547.80, 252,821.70 and 147,811.80
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Solution
The fourth proportional to 168,547.80, 252,821.70 and 147,811.80 is: 221,717.70
Step by Step Solution
- Step 1: Write the proportion equation
168,547.80 : 252,821.70 = 147,811.80 : x - Step 2: Convert to fraction form
168,547.80/252,821.70 = 147,811.80/x - Step 3: Cross multiply
168,547.80x = 252,821.70 × 147,811.80 - Step 4: Simplify right side
168,547.80x = 37,370,030,556.06 - Step 5: Solve for x
x = 37,370,030,556.06/168,547.80 - Step 6: Final answer
x = 221,717.70
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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.