Finding the Fourth Proportional to 438,431.30, 657,646.95 and 202,235.30
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Solution
The fourth proportional to 438,431.30, 657,646.95 and 202,235.30 is: 303,352.95
Step by Step Solution
- Step 1: Write the proportion equation
438,431.30 : 657,646.95 = 202,235.30 : x - Step 2: Convert to fraction form
438,431.30/657,646.95 = 202,235.30/x - Step 3: Cross multiply
438,431.30x = 657,646.95 × 202,235.30 - Step 4: Simplify right side
438,431.30x = 132,999,428,227.34 - Step 5: Solve for x
x = 132,999,428,227.34/438,431.30 - Step 6: Final answer
x = 303,352.95
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1.5x scale
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.