Finding the Fourth Proportional to 286,998.53, 430,560.08 and 87,313.73
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Solution
The fourth proportional to 286,998.53, 430,560.08 and 87,313.73 is: 130,989.54
Step by Step Solution
- Step 1: Write the proportion equation
286,998.53 : 430,560.08 = 87,313.73 : x - Step 2: Convert to fraction form
286,998.53/430,560.08 = 87,313.73/x - Step 3: Cross multiply
286,998.53x = 430,560.08 × 87,313.73 - Step 4: Simplify right side
286,998.53x = 37,593,805,794.95 - Step 5: Solve for x
x = 37,593,805,794.95/286,998.53 - Step 6: Final answer
x = 130,989.54
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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.