Finding the Fourth Proportional to 147,338.06, 221,161.68 and 130,578.30
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Solution
The fourth proportional to 147,338.06, 221,161.68 and 130,578.30 is: 196,004.46
Step by Step Solution
- Step 1: Write the proportion equation
147,338.06 : 221,161.68 = 130,578.30 : x - Step 2: Convert to fraction form
147,338.06/221,161.68 = 130,578.30/x - Step 3: Cross multiply
147,338.06x = 221,161.68 × 130,578.30 - Step 4: Simplify right side
147,338.06x = 28,878,916,199.54 - Step 5: Solve for x
x = 28,878,916,199.54/147,338.06 - Step 6: Final answer
x = 196,004.46
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1.5x scale
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.