Finding the Fourth Proportional to 153,235.70, 229,853.55 and 74,503.70
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Solution
The fourth proportional to 153,235.70, 229,853.55 and 74,503.70 is: 111,755.55
Step by Step Solution
- Step 1: Write the proportion equation
153,235.70 : 229,853.55 = 74,503.70 : x - Step 2: Convert to fraction form
153,235.70/229,853.55 = 74,503.70/x - Step 3: Cross multiply
153,235.70x = 229,853.55 × 74,503.70 - Step 4: Simplify right side
153,235.70x = 17,124,939,933.14 - Step 5: Solve for x
x = 17,124,939,933.14/153,235.70 - Step 6: Final answer
x = 111,755.55
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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.