Finding the Fourth Proportional to 438,823.80, 658,235.70 and 106,399.80
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Solution
The fourth proportional to 438,823.80, 658,235.70 and 106,399.80 is: 159,599.70
Step by Step Solution
- Step 1: Write the proportion equation
438,823.80 : 658,235.70 = 106,399.80 : x - Step 2: Convert to fraction form
438,823.80/658,235.70 = 106,399.80/x - Step 3: Cross multiply
438,823.80x = 658,235.70 × 106,399.80 - Step 4: Simplify right side
438,823.80x = 70,036,146,832.86 - Step 5: Solve for x
x = 70,036,146,832.86/438,823.80 - Step 6: Final answer
x = 159,599.70
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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.