Finding the Fourth Proportional to 368,138.88, 508,029.12 and 209,162.88
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Solution
The fourth proportional to 368,138.88, 508,029.12 and 209,162.88 is: 288,643.33
Step by Step Solution
- Step 1: Write the proportion equation
368,138.88 : 508,029.12 = 209,162.88 : x - Step 2: Convert to fraction form
368,138.88/508,029.12 = 209,162.88/x - Step 3: Cross multiply
368,138.88x = 508,029.12 × 209,162.88 - Step 4: Simplify right side
368,138.88x = 106,260,833,863.07 - Step 5: Solve for x
x = 106,260,833,863.07/368,138.88 - Step 6: Final answer
x = 288,643.33
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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.