Finding the Fourth Proportional to 306,847.96, 423,438.37 and 170,887.65
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Solution
The fourth proportional to 306,847.96, 423,438.37 and 170,887.65 is: 235,818.38
Step by Step Solution
- Step 1: Write the proportion equation
306,847.96 : 423,438.37 = 170,887.65 : x - Step 2: Convert to fraction form
306,847.96/423,438.37 = 170,887.65/x - Step 3: Cross multiply
306,847.96x = 423,438.37 × 170,887.65 - Step 4: Simplify right side
306,847.96x = 72,360,387,969.13 - Step 5: Solve for x
x = 72,360,387,969.13/306,847.96 - Step 6: Final answer
x = 235,818.38
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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.