Finding the Fourth Proportional to 253,027.65, 349,177.84 and 138,307.03
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Solution
The fourth proportional to 253,027.65, 349,177.84 and 138,307.03 is: 190,863.53
Step by Step Solution
- Step 1: Write the proportion equation
253,027.65 : 349,177.84 = 138,307.03 : x - Step 2: Convert to fraction form
253,027.65/349,177.84 = 138,307.03/x - Step 3: Cross multiply
253,027.65x = 349,177.84 × 138,307.03 - Step 4: Simplify right side
253,027.65x = 48,293,749,992.22 - Step 5: Solve for x
x = 48,293,749,992.22/253,027.65 - Step 6: Final answer
x = 190,863.53
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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.