Finding the Fourth Proportional to 309,335.88, 426,863.28 and 181,986.88
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Solution
The fourth proportional to 309,335.88, 426,863.28 and 181,986.88 is: 251,129.99
Step by Step Solution
- Step 1: Write the proportion equation
309,335.88 : 426,863.28 = 181,986.88 : x - Step 2: Convert to fraction form
309,335.88/426,863.28 = 181,986.88/x - Step 3: Cross multiply
309,335.88x = 426,863.28 × 181,986.88 - Step 4: Simplify right side
309,335.88x = 77,683,516,513.77 - Step 5: Solve for x
x = 77,683,516,513.77/309,335.88 - Step 6: Final answer
x = 251,129.99
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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.