Finding the Fourth Proportional to 157,504.80, 221,128.80 and 157,504.80
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Solution
The fourth proportional to 157,504.80, 221,128.80 and 157,504.80 is: 221,128.80
Step by Step Solution
- Step 1: Write the proportion equation
157,504.80 : 221,128.80 = 157,504.80 : x - Step 2: Convert to fraction form
157,504.80/221,128.80 = 157,504.80/x - Step 3: Cross multiply
157,504.80x = 221,128.80 × 157,504.80 - Step 4: Simplify right side
157,504.80x = 34,828,847,418.24 - Step 5: Solve for x
x = 34,828,847,418.24/157,504.80 - Step 6: Final answer
x = 221,128.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.