Finding the Fourth Proportional to 253,606.99, 349,973.36 and 140,427.31
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Solution
The fourth proportional to 253,606.99, 349,973.36 and 140,427.31 is: 193,787.31
Step by Step Solution
- Step 1: Write the proportion equation
253,606.99 : 349,973.36 = 140,427.31 : x - Step 2: Convert to fraction form
253,606.99/349,973.36 = 140,427.31/x - Step 3: Cross multiply
253,606.99x = 349,973.36 × 140,427.31 - Step 4: Simplify right side
253,606.99x = 49,145,817,516.46 - Step 5: Solve for x
x = 49,145,817,516.46/253,606.99 - Step 6: Final answer
x = 193,787.31
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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.