Finding the Fourth Proportional to 239,321.41, 330,259.11 and 130,426.62
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Solution
The fourth proportional to 239,321.41, 330,259.11 and 130,426.62 is: 179,986.32
Step by Step Solution
- Step 1: Write the proportion equation
239,321.41 : 330,259.11 = 130,426.62 : x - Step 2: Convert to fraction form
239,321.41/330,259.11 = 130,426.62/x - Step 3: Cross multiply
239,321.41x = 330,259.11 × 130,426.62 - Step 4: Simplify right side
239,321.41x = 43,074,579,441.51 - Step 5: Solve for x
x = 43,074,579,441.51/239,321.41 - Step 6: Final answer
x = 179,986.32
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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.