Finding the Fourth Proportional to 236,471.10, 326,337.05 and 129,048.07
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Solution
The fourth proportional to 236,471.10, 326,337.05 and 129,048.07 is: 178,090.12
Step by Step Solution
- Step 1: Write the proportion equation
236,471.10 : 326,337.05 = 129,048.07 : x - Step 2: Convert to fraction form
236,471.10/326,337.05 = 129,048.07/x - Step 3: Cross multiply
236,471.10x = 326,337.05 × 129,048.07 - Step 4: Simplify right side
236,471.10x = 42,113,165,978.77 - Step 5: Solve for x
x = 42,113,165,978.77/236,471.10 - Step 6: Final answer
x = 178,090.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.