Finding the Fourth Proportional to 312,970.68, 469,338.14 and 113,241.68
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Solution
The fourth proportional to 312,970.68, 469,338.14 and 113,241.68 is: 169,819.87
Step by Step Solution
- Step 1: Write the proportion equation
312,970.68 : 469,338.14 = 113,241.68 : x - Step 2: Convert to fraction form
312,970.68/469,338.14 = 113,241.68/x - Step 3: Cross multiply
312,970.68x = 469,338.14 × 113,241.68 - Step 4: Simplify right side
312,970.68x = 53,148,639,461.68 - Step 5: Solve for x
x = 53,148,639,461.68/312,970.68 - Step 6: Final answer
x = 169,819.87
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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.