Finding the Fourth Proportional to 370,519.10, 511,309.68 and 209,370.68
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Solution
The fourth proportional to 370,519.10, 511,309.68 and 209,370.68 is: 288,927.76
Step by Step Solution
- Step 1: Write the proportion equation
370,519.10 : 511,309.68 = 209,370.68 : x - Step 2: Convert to fraction form
370,519.10/511,309.68 = 209,370.68/x - Step 3: Cross multiply
370,519.10x = 511,309.68 × 209,370.68 - Step 4: Simplify right side
370,519.10x = 107,053,255,392.18 - Step 5: Solve for x
x = 107,053,255,392.18/370,519.10 - Step 6: Final answer
x = 288,927.76
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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.