Finding the Fourth Proportional to 485,237.14, 669,618.21 and 270,372.58
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Solution
The fourth proportional to 485,237.14, 669,618.21 and 270,372.58 is: 373,109.12
Step by Step Solution
- Step 1: Write the proportion equation
485,237.14 : 669,618.21 = 270,372.58 : x - Step 2: Convert to fraction form
485,237.14/669,618.21 = 270,372.58/x - Step 3: Cross multiply
485,237.14x = 669,618.21 × 270,372.58 - Step 4: Simplify right side
485,237.14x = 181,046,403,052.68 - Step 5: Solve for x
x = 181,046,403,052.68/485,237.14 - Step 6: Final answer
x = 373,109.12
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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.