Finding the Fourth Proportional to 421,293.34, 581,242.84 and 239,876.97
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Solution
The fourth proportional to 421,293.34, 581,242.84 and 239,876.97 is: 330,949.38
Step by Step Solution
- Step 1: Write the proportion equation
421,293.34 : 581,242.84 = 239,876.97 : x - Step 2: Convert to fraction form
421,293.34/581,242.84 = 239,876.97/x - Step 3: Cross multiply
421,293.34x = 581,242.84 × 239,876.97 - Step 4: Simplify right side
421,293.34x = 139,426,771,293.40 - Step 5: Solve for x
x = 139,426,771,293.40/421,293.34 - Step 6: Final answer
x = 330,949.38
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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.