Finding the Fourth Proportional to 286,631.08, 430,119.42 and 99,773.80
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Solution
The fourth proportional to 286,631.08, 430,119.42 and 99,773.80 is: 149,720.85
Step by Step Solution
- Step 1: Write the proportion equation
286,631.08 : 430,119.42 = 99,773.80 : x - Step 2: Convert to fraction form
286,631.08/430,119.42 = 99,773.80/x - Step 3: Cross multiply
286,631.08x = 430,119.42 × 99,773.80 - Step 4: Simplify right side
286,631.08x = 42,914,648,987.20 - Step 5: Solve for x
x = 42,914,648,987.20/286,631.08 - Step 6: Final answer
x = 149,720.85
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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.