Finding the Fourth Proportional to 479,228.09, 718,719.12 and 142,189.01
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Solution
The fourth proportional to 479,228.09, 718,719.12 and 142,189.01 is: 213,247.02
Step by Step Solution
- Step 1: Write the proportion equation
479,228.09 : 718,719.12 = 142,189.01 : x - Step 2: Convert to fraction form
479,228.09/718,719.12 = 142,189.01/x - Step 3: Cross multiply
479,228.09x = 718,719.12 × 142,189.01 - Step 4: Simplify right side
479,228.09x = 102,193,960,140.87 - Step 5: Solve for x
x = 102,193,960,140.87/479,228.09 - Step 6: Final answer
x = 213,247.02
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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.