Finding the Fourth Proportional to 339,829.08, 509,804.91 and 140,038.26
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Solution
The fourth proportional to 339,829.08, 509,804.91 and 140,038.26 is: 210,082.65
Step by Step Solution
- Step 1: Write the proportion equation
339,829.08 : 509,804.91 = 140,038.26 : x - Step 2: Convert to fraction form
339,829.08/509,804.91 = 140,038.26/x - Step 3: Cross multiply
339,829.08x = 509,804.91 × 140,038.26 - Step 4: Simplify right side
339,829.08x = 71,392,192,535.86 - Step 5: Solve for x
x = 71,392,192,535.86/339,829.08 - Step 6: Final answer
x = 210,082.65
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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.