Finding the Fourth Proportional to 239,133.12, 330,018.63 and 131,703.12
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Solution
The fourth proportional to 239,133.12, 330,018.63 and 131,703.12 is: 181,758.53
Step by Step Solution
- Step 1: Write the proportion equation
239,133.12 : 330,018.63 = 131,703.12 : x - Step 2: Convert to fraction form
239,133.12/330,018.63 = 131,703.12/x - Step 3: Cross multiply
239,133.12x = 330,018.63 × 131,703.12 - Step 4: Simplify right side
239,133.12x = 43,464,483,229.13 - Step 5: Solve for x
x = 43,464,483,229.13/239,133.12 - Step 6: Final answer
x = 181,758.53
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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.