Finding the Fourth Proportional to 305,125.26, 457,686.98 and 77,420.44
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Solution
The fourth proportional to 305,125.26, 457,686.98 and 77,420.44 is: 116,130.43
Step by Step Solution
- Step 1: Write the proportion equation
305,125.26 : 457,686.98 = 77,420.44 : x - Step 2: Convert to fraction form
305,125.26/457,686.98 = 77,420.44/x - Step 3: Cross multiply
305,125.26x = 457,686.98 × 77,420.44 - Step 4: Simplify right side
305,125.26x = 35,434,326,801.76 - Step 5: Solve for x
x = 35,434,326,801.76/305,125.26 - Step 6: Final answer
x = 116,130.43
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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.