Finding the Fourth Proportional to 421,566.12, 581,765.76 and 230,575.41
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Solution
The fourth proportional to 421,566.12, 581,765.76 and 230,575.41 is: 318,196.53
Step by Step Solution
- Step 1: Write the proportion equation
421,566.12 : 581,765.76 = 230,575.41 : x - Step 2: Convert to fraction form
421,566.12/581,765.76 = 230,575.41/x - Step 3: Cross multiply
421,566.12x = 581,765.76 × 230,575.41 - Step 4: Simplify right side
421,566.12x = 134,140,878,635.96 - Step 5: Solve for x
x = 134,140,878,635.96/421,566.12 - Step 6: Final answer
x = 318,196.53
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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.