Finding the Fourth Proportional to 320,833.10, 442,783.36 and 240,119.44
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Solution
The fourth proportional to 320,833.10, 442,783.36 and 240,119.44 is: 331,390.03
Step by Step Solution
- Step 1: Write the proportion equation
320,833.10 : 442,783.36 = 240,119.44 : x - Step 2: Convert to fraction form
320,833.10/442,783.36 = 240,119.44/x - Step 3: Cross multiply
320,833.10x = 442,783.36 × 240,119.44 - Step 4: Simplify right side
320,833.10x = 106,320,891,637.71 - Step 5: Solve for x
x = 106,320,891,637.71/320,833.10 - Step 6: Final answer
x = 331,390.03
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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.