Finding the Fourth Proportional to 306,539.20, 459,808.80 and 84,923.20
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Solution
The fourth proportional to 306,539.20, 459,808.80 and 84,923.20 is: 127,384.80
Step by Step Solution
- Step 1: Write the proportion equation
306,539.20 : 459,808.80 = 84,923.20 : x - Step 2: Convert to fraction form
306,539.20/459,808.80 = 84,923.20/x - Step 3: Cross multiply
306,539.20x = 459,808.80 × 84,923.20 - Step 4: Simplify right side
306,539.20x = 39,048,434,684.16 - Step 5: Solve for x
x = 39,048,434,684.16/306,539.20 - Step 6: Final answer
x = 127,384.80
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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.