Finding the Fourth Proportional to 306,706.44, 423,169.74 and 197,764.68
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Solution
The fourth proportional to 306,706.44, 423,169.74 and 197,764.68 is: 272,860.36
Step by Step Solution
- Step 1: Write the proportion equation
306,706.44 : 423,169.74 = 197,764.68 : x - Step 2: Convert to fraction form
306,706.44/423,169.74 = 197,764.68/x - Step 3: Cross multiply
306,706.44x = 423,169.74 × 197,764.68 - Step 4: Simplify right side
306,706.44x = 83,688,028,216.78 - Step 5: Solve for x
x = 83,688,028,216.78/306,706.44 - Step 6: Final answer
x = 272,860.36
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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.