Finding the Fourth Proportional to 253,029.64, 349,203.14 and 139,874.26
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Solution
The fourth proportional to 253,029.64, 349,203.14 and 139,874.26 is: 193,038.77
Step by Step Solution
- Step 1: Write the proportion equation
253,029.64 : 349,203.14 = 139,874.26 : x - Step 2: Convert to fraction form
253,029.64/349,203.14 = 139,874.26/x - Step 3: Cross multiply
253,029.64x = 349,203.14 × 139,874.26 - Step 4: Simplify right side
253,029.64x = 48,844,530,797.18 - Step 5: Solve for x
x = 48,844,530,797.18/253,029.64 - Step 6: Final answer
x = 193,038.77
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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.