Finding the Fourth Proportional to 253,554.41, 349,903.79 and 138,830.97
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Solution
The fourth proportional to 253,554.41, 349,903.79 and 138,830.97 is: 191,586.03
Step by Step Solution
- Step 1: Write the proportion equation
253,554.41 : 349,903.79 = 138,830.97 : x - Step 2: Convert to fraction form
253,554.41/349,903.79 = 138,830.97/x - Step 3: Cross multiply
253,554.41x = 349,903.79 × 138,830.97 - Step 4: Simplify right side
253,554.41x = 48,577,482,572.38 - Step 5: Solve for x
x = 48,577,482,572.38/253,554.41 - Step 6: Final answer
x = 191,586.03
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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.