Finding the Fourth Proportional to 306,311.60, 458,430.60 and 268,986.80
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Solution
The fourth proportional to 306,311.60, 458,430.60 and 268,986.80 is: 402,569.74
Step by Step Solution
- Step 1: Write the proportion equation
306,311.60 : 458,430.60 = 268,986.80 : x - Step 2: Convert to fraction form
306,311.60/458,430.60 = 268,986.80/x - Step 3: Cross multiply
306,311.60x = 458,430.60 × 268,986.80 - Step 4: Simplify right side
306,311.60x = 123,311,780,116.08 - Step 5: Solve for x
x = 123,311,780,116.08/306,311.60 - Step 6: Final answer
x = 402,569.74
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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.