Finding the Fourth Proportional to 356,207.13, 534,198.95 and 103,505.09
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Solution
The fourth proportional to 356,207.13, 534,198.95 and 103,505.09 is: 155,225.17
Step by Step Solution
- Step 1: Write the proportion equation
356,207.13 : 534,198.95 = 103,505.09 : x - Step 2: Convert to fraction form
356,207.13/534,198.95 = 103,505.09/x - Step 3: Cross multiply
356,207.13x = 534,198.95 × 103,505.09 - Step 4: Simplify right side
356,207.13x = 55,292,311,215.63 - Step 5: Solve for x
x = 55,292,311,215.63/356,207.13 - Step 6: Final answer
x = 155,225.17
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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.