Finding the Fourth Proportional to 278,148.08, 417,037.77 and 100,631.99
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Solution
The fourth proportional to 278,148.08, 417,037.77 and 100,631.99 is: 150,881.28
Step by Step Solution
- Step 1: Write the proportion equation
278,148.08 : 417,037.77 = 100,631.99 : x - Step 2: Convert to fraction form
278,148.08/417,037.77 = 100,631.99/x - Step 3: Cross multiply
278,148.08x = 417,037.77 × 100,631.99 - Step 4: Simplify right side
278,148.08x = 41,967,338,615.07 - Step 5: Solve for x
x = 41,967,338,615.07/278,148.08 - Step 6: Final answer
x = 150,881.28
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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.