Finding the Fourth Proportional to 240,458.14, 331,835.73 and 138,501.91
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Solution
The fourth proportional to 240,458.14, 331,835.73 and 138,501.91 is: 191,134.65
Step by Step Solution
- Step 1: Write the proportion equation
240,458.14 : 331,835.73 = 138,501.91 : x - Step 2: Convert to fraction form
240,458.14/331,835.73 = 138,501.91/x - Step 3: Cross multiply
240,458.14x = 331,835.73 × 138,501.91 - Step 4: Simplify right side
240,458.14x = 45,959,883,454.99 - Step 5: Solve for x
x = 45,959,883,454.99/240,458.14 - Step 6: Final answer
x = 191,134.65
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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.