Finding the Fourth Proportional to 278,487.84, 384,313.68 and 151,163.40
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Solution
The fourth proportional to 278,487.84, 384,313.68 and 151,163.40 is: 208,605.74
Step by Step Solution
- Step 1: Write the proportion equation
278,487.84 : 384,313.68 = 151,163.40 : x - Step 2: Convert to fraction form
278,487.84/384,313.68 = 151,163.40/x - Step 3: Cross multiply
278,487.84x = 384,313.68 × 151,163.40 - Step 4: Simplify right side
278,487.84x = 58,094,162,535.31 - Step 5: Solve for x
x = 58,094,162,535.31/278,487.84 - Step 6: Final answer
x = 208,605.74
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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.