Finding the Fourth Proportional to 638,890.50, 958,055.07 and 239,250.99
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Solution
The fourth proportional to 638,890.50, 958,055.07 and 239,250.99 is: 358,771.38
Step by Step Solution
- Step 1: Write the proportion equation
638,890.50 : 958,055.07 = 239,250.99 : x - Step 2: Convert to fraction form
638,890.50/958,055.07 = 239,250.99/x - Step 3: Cross multiply
638,890.50x = 958,055.07 × 239,250.99 - Step 4: Simplify right side
638,890.50x = 229,215,623,972.02 - Step 5: Solve for x
x = 229,215,623,972.02/638,890.50 - Step 6: Final answer
x = 358,771.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.