Finding the Fourth Proportional to 213,005.99, 317,764.60 and 207,214.53
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Solution
The fourth proportional to 213,005.99, 317,764.60 and 207,214.53 is: 309,124.84
Step by Step Solution
- Step 1: Write the proportion equation
213,005.99 : 317,764.60 = 207,214.53 : x - Step 2: Convert to fraction form
213,005.99/317,764.60 = 207,214.53/x - Step 3: Cross multiply
213,005.99x = 317,764.60 × 207,214.53 - Step 4: Simplify right side
213,005.99x = 65,845,441,721.60 - Step 5: Solve for x
x = 65,845,441,721.60/213,005.99 - Step 6: Final answer
x = 309,124.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.