Finding the Fourth Proportional to 438,467.40, 657,506.70 and 201,688.20
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Solution
The fourth proportional to 438,467.40, 657,506.70 and 201,688.20 is: 302,442.88
Step by Step Solution
- Step 1: Write the proportion equation
438,467.40 : 657,506.70 = 201,688.20 : x - Step 2: Convert to fraction form
438,467.40/657,506.70 = 201,688.20/x - Step 3: Cross multiply
438,467.40x = 657,506.70 × 201,688.20 - Step 4: Simplify right side
438,467.40x = 132,611,342,810.94 - Step 5: Solve for x
x = 132,611,342,810.94/438,467.40 - Step 6: Final answer
x = 302,442.88
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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.