Finding the Fourth Proportional to 412,903.96, 619,207.18 and 142,958.80
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Solution
The fourth proportional to 412,903.96, 619,207.18 and 142,958.80 is: 214,386.70
Step by Step Solution
- Step 1: Write the proportion equation
412,903.96 : 619,207.18 = 142,958.80 : x - Step 2: Convert to fraction form
412,903.96/619,207.18 = 142,958.80/x - Step 3: Cross multiply
412,903.96x = 619,207.18 × 142,958.80 - Step 4: Simplify right side
412,903.96x = 88,521,115,404.18 - Step 5: Solve for x
x = 88,521,115,404.18/412,903.96 - Step 6: Final answer
x = 214,386.70
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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.