Finding the Fourth Proportional to 421,265.37, 581,305.08 and 239,963.07
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Solution
The fourth proportional to 421,265.37, 581,305.08 and 239,963.07 is: 331,125.61
Step by Step Solution
- Step 1: Write the proportion equation
421,265.37 : 581,305.08 = 239,963.07 : x - Step 2: Convert to fraction form
421,265.37/581,305.08 = 239,963.07/x - Step 3: Cross multiply
421,265.37x = 581,305.08 × 239,963.07 - Step 4: Simplify right side
421,265.37x = 139,491,751,603.40 - Step 5: Solve for x
x = 139,491,751,603.40/421,265.37 - Step 6: Final answer
x = 331,125.61
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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.