Finding the Fourth Proportional to 153,045.70, 229,568.55 and 74,313.70
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Solution
The fourth proportional to 153,045.70, 229,568.55 and 74,313.70 is: 111,470.55
Step by Step Solution
- Step 1: Write the proportion equation
153,045.70 : 229,568.55 = 74,313.70 : x - Step 2: Convert to fraction form
153,045.70/229,568.55 = 74,313.70/x - Step 3: Cross multiply
153,045.70x = 229,568.55 × 74,313.70 - Step 4: Simplify right side
153,045.70x = 17,060,088,354.14 - Step 5: Solve for x
x = 17,060,088,354.14/153,045.70 - Step 6: Final answer
x = 111,470.55
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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.