Finding the Fourth Proportional to 417,896.10, 626,934.18 and 129,701.73
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Solution
The fourth proportional to 417,896.10, 626,934.18 and 129,701.73 is: 194,580.54
Step by Step Solution
- Step 1: Write the proportion equation
417,896.10 : 626,934.18 = 129,701.73 : x - Step 2: Convert to fraction form
417,896.10/626,934.18 = 129,701.73/x - Step 3: Cross multiply
417,896.10x = 626,934.18 × 129,701.73 - Step 4: Simplify right side
417,896.10x = 81,314,447,742.13 - Step 5: Solve for x
x = 81,314,447,742.13/417,896.10 - Step 6: Final answer
x = 194,580.54
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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.