Finding the Fourth Proportional to 306,861.24, 423,346.86 and 187,698.36
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Solution
The fourth proportional to 306,861.24, 423,346.86 and 187,698.36 is: 258,949.33
Step by Step Solution
- Step 1: Write the proportion equation
306,861.24 : 423,346.86 = 187,698.36 : x - Step 2: Convert to fraction form
306,861.24/423,346.86 = 187,698.36/x - Step 3: Cross multiply
306,861.24x = 423,346.86 × 187,698.36 - Step 4: Simplify right side
306,861.24x = 79,461,511,333.15 - Step 5: Solve for x
x = 79,461,511,333.15/306,861.24 - Step 6: Final answer
x = 258,949.33
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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.