Finding the Fourth Proportional to 239,282.66, 330,210.09 and 138,738.98
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Solution
The fourth proportional to 239,282.66, 330,210.09 and 138,738.98 is: 191,459.80
Step by Step Solution
- Step 1: Write the proportion equation
239,282.66 : 330,210.09 = 138,738.98 : x - Step 2: Convert to fraction form
239,282.66/330,210.09 = 138,738.98/x - Step 3: Cross multiply
239,282.66x = 330,210.09 × 138,738.98 - Step 4: Simplify right side
239,282.66x = 45,813,011,072.31 - Step 5: Solve for x
x = 45,813,011,072.31/239,282.66 - Step 6: Final answer
x = 191,459.80
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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.