Finding the Fourth Proportional to 438,201.99, 657,340.61 and 153,868.09
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Solution
The fourth proportional to 438,201.99, 657,340.61 and 153,868.09 is: 230,815.35
Step by Step Solution
- Step 1: Write the proportion equation
438,201.99 : 657,340.61 = 153,868.09 : x - Step 2: Convert to fraction form
438,201.99/657,340.61 = 153,868.09/x - Step 3: Cross multiply
438,201.99x = 657,340.61 × 153,868.09 - Step 4: Simplify right side
438,201.99x = 101,143,746,490.44 - Step 5: Solve for x
x = 101,143,746,490.44/438,201.99 - Step 6: Final answer
x = 230,815.35
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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.