Finding the Fourth Proportional to 252,483.19, 348,434.09 and 139,313.23
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Solution
The fourth proportional to 252,483.19, 348,434.09 and 139,313.23 is: 192,256.28
Step by Step Solution
- Step 1: Write the proportion equation
252,483.19 : 348,434.09 = 139,313.23 : x - Step 2: Convert to fraction form
252,483.19/348,434.09 = 139,313.23/x - Step 3: Cross multiply
252,483.19x = 348,434.09 × 139,313.23 - Step 4: Simplify right side
252,483.19x = 48,541,477,474.78 - Step 5: Solve for x
x = 48,541,477,474.78/252,483.19 - Step 6: Final answer
x = 192,256.28
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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.