Finding the Fourth Proportional to 286,743.10, 429,523.35 and 168,054.70
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Solution
The fourth proportional to 286,743.10, 429,523.35 and 168,054.70 is: 251,735.50
Step by Step Solution
- Step 1: Write the proportion equation
286,743.10 : 429,523.35 = 168,054.70 : x - Step 2: Convert to fraction form
286,743.10/429,523.35 = 168,054.70/x - Step 3: Cross multiply
286,743.10x = 429,523.35 × 168,054.70 - Step 4: Simplify right side
286,743.10x = 72,183,417,727.25 - Step 5: Solve for x
x = 72,183,417,727.25/286,743.10 - Step 6: Final answer
x = 251,735.50
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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.