Finding the Fourth Proportional to 413,530.08, 620,381.20 and 129,209.14
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Solution
The fourth proportional to 413,530.08, 620,381.20 and 129,209.14 is: 193,840.61
Step by Step Solution
- Step 1: Write the proportion equation
413,530.08 : 620,381.20 = 129,209.14 : x - Step 2: Convert to fraction form
413,530.08/620,381.20 = 129,209.14/x - Step 3: Cross multiply
413,530.08x = 620,381.20 × 129,209.14 - Step 4: Simplify right side
413,530.08x = 80,158,921,324.17 - Step 5: Solve for x
x = 80,158,921,324.17/413,530.08 - Step 6: Final answer
x = 193,840.61
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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.