Finding the Fourth Proportional to 213,742.80, 294,967.98 and 133,202.88
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Solution
The fourth proportional to 213,742.80, 294,967.98 and 133,202.88 is: 183,821.79
Step by Step Solution
- Step 1: Write the proportion equation
213,742.80 : 294,967.98 = 133,202.88 : x - Step 2: Convert to fraction form
213,742.80/294,967.98 = 133,202.88/x - Step 3: Cross multiply
213,742.80x = 294,967.98 × 133,202.88 - Step 4: Simplify right side
213,742.80x = 39,290,584,443.78 - Step 5: Solve for x
x = 39,290,584,443.78/213,742.80 - Step 6: Final answer
x = 183,821.79
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1.5x scale
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.