Finding the Fourth Proportional to 213,225.21, 319,839.30 and 146,462.99
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Solution
The fourth proportional to 213,225.21, 319,839.30 and 146,462.99 is: 219,695.50
Step by Step Solution
- Step 1: Write the proportion equation
213,225.21 : 319,839.30 = 146,462.99 : x - Step 2: Convert to fraction form
213,225.21/319,839.30 = 146,462.99/x - Step 3: Cross multiply
213,225.21x = 319,839.30 × 146,462.99 - Step 4: Simplify right side
213,225.21x = 46,844,618,598.31 - Step 5: Solve for x
x = 46,844,618,598.31/213,225.21 - Step 6: Final answer
x = 219,695.50
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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.