Finding the Fourth Proportional to 398,058.65, 597,129.89 and 229,575.21
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Solution
The fourth proportional to 398,058.65, 597,129.89 and 229,575.21 is: 344,386.99
Step by Step Solution
- Step 1: Write the proportion equation
398,058.65 : 597,129.89 = 229,575.21 : x - Step 2: Convert to fraction form
398,058.65/597,129.89 = 229,575.21/x - Step 3: Cross multiply
398,058.65x = 597,129.89 × 229,575.21 - Step 4: Simplify right side
398,058.65x = 137,086,219,894.03 - Step 5: Solve for x
x = 137,086,219,894.03/398,058.65 - Step 6: Final answer
x = 344,386.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.