Finding the Fourth Proportional to 266,938.11, 400,128.21 and 89,298.99
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Solution
The fourth proportional to 266,938.11, 400,128.21 and 89,298.99 is: 133,855.17
Step by Step Solution
- Step 1: Write the proportion equation
266,938.11 : 400,128.21 = 89,298.99 : x - Step 2: Convert to fraction form
266,938.11/400,128.21 = 89,298.99/x - Step 3: Cross multiply
266,938.11x = 400,128.21 × 89,298.99 - Step 4: Simplify right side
266,938.11x = 35,731,045,023.51 - Step 5: Solve for x
x = 35,731,045,023.51/266,938.11 - Step 6: Final answer
x = 133,855.17
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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.