Finding the Fourth Proportional to 430,939.09, 646,108.84 and 190,922.77
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Solution
The fourth proportional to 430,939.09, 646,108.84 and 190,922.77 is: 286,251.33
Step by Step Solution
- Step 1: Write the proportion equation
430,939.09 : 646,108.84 = 190,922.77 : x - Step 2: Convert to fraction form
430,939.09/646,108.84 = 190,922.77/x - Step 3: Cross multiply
430,939.09x = 646,108.84 × 190,922.77 - Step 4: Simplify right side
430,939.09x = 123,356,889,454.29 - Step 5: Solve for x
x = 123,356,889,454.29/430,939.09 - Step 6: Final answer
x = 286,251.33
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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.