Finding the Fourth Proportional to 276,871.80, 415,307.70 and 136,903.80
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Solution
The fourth proportional to 276,871.80, 415,307.70 and 136,903.80 is: 205,355.70
Step by Step Solution
- Step 1: Write the proportion equation
276,871.80 : 415,307.70 = 136,903.80 : x - Step 2: Convert to fraction form
276,871.80/415,307.70 = 136,903.80/x - Step 3: Cross multiply
276,871.80x = 415,307.70 × 136,903.80 - Step 4: Simplify right side
276,871.80x = 56,857,202,299.26 - Step 5: Solve for x
x = 56,857,202,299.26/276,871.80 - Step 6: Final answer
x = 205,355.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.