Finding the Fourth Proportional to 318,352.14, 439,316.76 and 175,112.18
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Solution
The fourth proportional to 318,352.14, 439,316.76 and 175,112.18 is: 241,649.75
Step by Step Solution
- Step 1: Write the proportion equation
318,352.14 : 439,316.76 = 175,112.18 : x - Step 2: Convert to fraction form
318,352.14/439,316.76 = 175,112.18/x - Step 3: Cross multiply
318,352.14x = 439,316.76 × 175,112.18 - Step 4: Simplify right side
318,352.14x = 76,929,715,554.14 - Step 5: Solve for x
x = 76,929,715,554.14/318,352.14 - Step 6: Final answer
x = 241,649.75
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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.