Finding the Fourth Proportional to 253,542.84, 349,875.80 and 138,799.50
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Solution
The fourth proportional to 253,542.84, 349,875.80 and 138,799.50 is: 191,536.02
Step by Step Solution
- Step 1: Write the proportion equation
253,542.84 : 349,875.80 = 138,799.50 : x - Step 2: Convert to fraction form
253,542.84/349,875.80 = 138,799.50/x - Step 3: Cross multiply
253,542.84x = 349,875.80 × 138,799.50 - Step 4: Simplify right side
253,542.84x = 48,562,586,102.10 - Step 5: Solve for x
x = 48,562,586,102.10/253,542.84 - Step 6: Final answer
x = 191,536.02
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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.