Finding the Fourth Proportional to 339,013.02, 508,322.61 and 128,536.14
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Solution
The fourth proportional to 339,013.02, 508,322.61 and 128,536.14 is: 192,729.55
Step by Step Solution
- Step 1: Write the proportion equation
339,013.02 : 508,322.61 = 128,536.14 : x - Step 2: Convert to fraction form
339,013.02/508,322.61 = 128,536.14/x - Step 3: Cross multiply
339,013.02x = 508,322.61 × 128,536.14 - Step 4: Simplify right side
339,013.02x = 65,337,826,164.13 - Step 5: Solve for x
x = 65,337,826,164.13/339,013.02 - Step 6: Final answer
x = 192,729.55
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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.