Finding the Fourth Proportional to 177,930.32, 266,895.64 and 72,749.28
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Solution
The fourth proportional to 177,930.32, 266,895.64 and 72,749.28 is: 109,123.99
Step by Step Solution
- Step 1: Write the proportion equation
177,930.32 : 266,895.64 = 72,749.28 : x - Step 2: Convert to fraction form
177,930.32/266,895.64 = 72,749.28/x - Step 3: Cross multiply
177,930.32x = 266,895.64 × 72,749.28 - Step 4: Simplify right side
177,930.32x = 19,416,466,736.93 - Step 5: Solve for x
x = 19,416,466,736.93/177,930.32 - Step 6: Final answer
x = 109,123.99
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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.