Finding the Fourth Proportional to 399,177.43, 550,782.62 and 229,378.75
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Solution
The fourth proportional to 399,177.43, 550,782.62 and 229,378.75 is: 316,495.42
Step by Step Solution
- Step 1: Write the proportion equation
399,177.43 : 550,782.62 = 229,378.75 : x - Step 2: Convert to fraction form
399,177.43/550,782.62 = 229,378.75/x - Step 3: Cross multiply
399,177.43x = 550,782.62 × 229,378.75 - Step 4: Simplify right side
399,177.43x = 126,337,827,233.65 - Step 5: Solve for x
x = 126,337,827,233.65/399,177.43 - Step 6: Final answer
x = 316,495.42
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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.