Finding the Fourth Proportional to 313,263.15, 469,890.62 and 76,607.88
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Solution
The fourth proportional to 313,263.15, 469,890.62 and 76,607.88 is: 114,910.81
Step by Step Solution
- Step 1: Write the proportion equation
313,263.15 : 469,890.62 = 76,607.88 : x - Step 2: Convert to fraction form
313,263.15/469,890.62 = 76,607.88/x - Step 3: Cross multiply
313,263.15x = 469,890.62 × 76,607.88 - Step 4: Simplify right side
313,263.15x = 35,997,322,372.24 - Step 5: Solve for x
x = 35,997,322,372.24/313,263.15 - Step 6: Final answer
x = 114,910.81
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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.