Finding the Fourth Proportional to 305,467.60, 457,812.60 and 272,030.80
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Solution
The fourth proportional to 305,467.60, 457,812.60 and 272,030.80 is: 407,699.96
Step by Step Solution
- Step 1: Write the proportion equation
305,467.60 : 457,812.60 = 272,030.80 : x - Step 2: Convert to fraction form
305,467.60/457,812.60 = 272,030.80/x - Step 3: Cross multiply
305,467.60x = 457,812.60 × 272,030.80 - Step 4: Simplify right side
305,467.60x = 124,539,127,828.08 - Step 5: Solve for x
x = 124,539,127,828.08/305,467.60 - Step 6: Final answer
x = 407,699.96
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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.