Finding the Fourth Proportional to 438,431.10, 657,646.65 and 106,007.10
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Solution
The fourth proportional to 438,431.10, 657,646.65 and 106,007.10 is: 159,010.65
Step by Step Solution
- Step 1: Write the proportion equation
438,431.10 : 657,646.65 = 106,007.10 : x - Step 2: Convert to fraction form
438,431.10/657,646.65 = 106,007.10/x - Step 3: Cross multiply
438,431.10x = 657,646.65 × 106,007.10 - Step 4: Simplify right side
438,431.10x = 69,715,214,191.22 - Step 5: Solve for x
x = 69,715,214,191.22/438,431.10 - Step 6: Final answer
x = 159,010.65
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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.