Finding the Fourth Proportional to 240,237.65, 331,505.91 and 138,235.97
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Solution
The fourth proportional to 240,237.65, 331,505.91 and 138,235.97 is: 190,752.95
Step by Step Solution
- Step 1: Write the proportion equation
240,237.65 : 331,505.91 = 138,235.97 : x - Step 2: Convert to fraction form
240,237.65/331,505.91 = 138,235.97/x - Step 3: Cross multiply
240,237.65x = 331,505.91 × 138,235.97 - Step 4: Simplify right side
240,237.65x = 45,826,039,372.05 - Step 5: Solve for x
x = 45,826,039,372.05/240,237.65 - Step 6: Final answer
x = 190,752.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.