Finding the Fourth Proportional to 259,449.60, 389,142.18 and 69,924.79
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Solution
The fourth proportional to 259,449.60, 389,142.18 and 69,924.79 is: 104,878.50
Step by Step Solution
- Step 1: Write the proportion equation
259,449.60 : 389,142.18 = 69,924.79 : x - Step 2: Convert to fraction form
259,449.60/389,142.18 = 69,924.79/x - Step 3: Cross multiply
259,449.60x = 389,142.18 × 69,924.79 - Step 4: Simplify right side
259,449.60x = 27,210,685,216.64 - Step 5: Solve for x
x = 27,210,685,216.64/259,449.60 - Step 6: Final answer
x = 104,878.50
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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.