Finding the Fourth Proportional to 278,295.51, 417,503.75 and 91,299.99
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Solution
The fourth proportional to 278,295.51, 417,503.75 and 91,299.99 is: 136,969.83
Step by Step Solution
- Step 1: Write the proportion equation
278,295.51 : 417,503.75 = 91,299.99 : x - Step 2: Convert to fraction form
278,295.51/417,503.75 = 91,299.99/x - Step 3: Cross multiply
278,295.51x = 417,503.75 × 91,299.99 - Step 4: Simplify right side
278,295.51x = 38,118,087,743.46 - Step 5: Solve for x
x = 38,118,087,743.46/278,295.51 - Step 6: Final answer
x = 136,969.83
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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.