Finding the Fourth Proportional to 240,356.88, 331,717.41 and 138,385.98
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Solution
The fourth proportional to 240,356.88, 331,717.41 and 138,385.98 is: 190,987.00
Step by Step Solution
- Step 1: Write the proportion equation
240,356.88 : 331,717.41 = 138,385.98 : x - Step 2: Convert to fraction form
240,356.88/331,717.41 = 138,385.98/x - Step 3: Cross multiply
240,356.88x = 331,717.41 × 138,385.98 - Step 4: Simplify right side
240,356.88x = 45,905,038,865.91 - Step 5: Solve for x
x = 45,905,038,865.91/240,356.88 - Step 6: Final answer
x = 190,987.00
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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.