Finding the Fourth Proportional to 305,466.60, 457,811.10 and 272,029.80
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Solution
The fourth proportional to 305,466.60, 457,811.10 and 272,029.80 is: 407,698.46
Step by Step Solution
- Step 1: Write the proportion equation
305,466.60 : 457,811.10 = 272,029.80 : x - Step 2: Convert to fraction form
305,466.60/457,811.10 = 272,029.80/x - Step 3: Cross multiply
305,466.60x = 457,811.10 × 272,029.80 - Step 4: Simplify right side
305,466.60x = 124,538,261,970.78 - Step 5: Solve for x
x = 124,538,261,970.78/305,466.60 - Step 6: Final answer
x = 407,698.46
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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.