Finding the Fourth Proportional to 375,620.28, 518,125.68 and 306,809.73
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Solution
The fourth proportional to 375,620.28, 518,125.68 and 306,809.73 is: 423,209.31
Step by Step Solution
- Step 1: Write the proportion equation
375,620.28 : 518,125.68 = 306,809.73 : x - Step 2: Convert to fraction form
375,620.28/518,125.68 = 306,809.73/x - Step 3: Cross multiply
375,620.28x = 518,125.68 × 306,809.73 - Step 4: Simplify right side
375,620.28x = 158,965,999,986.87 - Step 5: Solve for x
x = 158,965,999,986.87/375,620.28 - Step 6: Final answer
x = 423,209.31
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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.