Finding the Fourth Proportional to 253,528.24, 349,873.12 and 138,804.96
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Solution
The fourth proportional to 253,528.24, 349,873.12 and 138,804.96 is: 191,553.12
Step by Step Solution
- Step 1: Write the proportion equation
253,528.24 : 349,873.12 = 138,804.96 : x - Step 2: Convert to fraction form
253,528.24/349,873.12 = 138,804.96/x - Step 3: Cross multiply
253,528.24x = 349,873.12 × 138,804.96 - Step 4: Simplify right side
253,528.24x = 48,564,124,426.68 - Step 5: Solve for x
x = 48,564,124,426.68/253,528.24 - Step 6: Final answer
x = 191,553.12
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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.