Finding the Fourth Proportional to 153,214.36, 211,349.49 and 91,944.70
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Solution
The fourth proportional to 153,214.36, 211,349.49 and 91,944.70 is: 126,831.88
Step by Step Solution
- Step 1: Write the proportion equation
153,214.36 : 211,349.49 = 91,944.70 : x - Step 2: Convert to fraction form
153,214.36/211,349.49 = 91,944.70/x - Step 3: Cross multiply
153,214.36x = 211,349.49 × 91,944.70 - Step 4: Simplify right side
153,214.36x = 19,432,465,453.20 - Step 5: Solve for x
x = 19,432,465,453.20/153,214.36 - Step 6: Final answer
x = 126,831.88
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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.