Finding the Fourth Proportional to 421,676.55, 581,918.99 and 230,693.13
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Solution
The fourth proportional to 421,676.55, 581,918.99 and 230,693.13 is: 318,359.44
Step by Step Solution
- Step 1: Write the proportion equation
421,676.55 : 581,918.99 = 230,693.13 : x - Step 2: Convert to fraction form
421,676.55/581,918.99 = 230,693.13/x - Step 3: Cross multiply
421,676.55x = 581,918.99 × 230,693.13 - Step 4: Simplify right side
421,676.55x = 134,244,712,056.07 - Step 5: Solve for x
x = 134,244,712,056.07/421,676.55 - Step 6: Final answer
x = 318,359.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.