Finding the Fourth Proportional to 285,421.26, 428,094.99 and 135,756.65
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Solution
The fourth proportional to 285,421.26, 428,094.99 and 135,756.65 is: 203,617.43
Step by Step Solution
- Step 1: Write the proportion equation
285,421.26 : 428,094.99 = 135,756.65 : x - Step 2: Convert to fraction form
285,421.26/428,094.99 = 135,756.65/x - Step 3: Cross multiply
285,421.26x = 428,094.99 × 135,756.65 - Step 4: Simplify right side
285,421.26x = 58,116,742,794.42 - Step 5: Solve for x
x = 58,116,742,794.42/285,421.26 - Step 6: Final answer
x = 203,617.43
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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.