Finding the Fourth Proportional to 260,331.75, 390,348.18 and 102,474.09
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Solution
The fourth proportional to 260,331.75, 390,348.18 and 102,474.09 is: 153,652.31
Step by Step Solution
- Step 1: Write the proportion equation
260,331.75 : 390,348.18 = 102,474.09 : x - Step 2: Convert to fraction form
260,331.75/390,348.18 = 102,474.09/x - Step 3: Cross multiply
260,331.75x = 390,348.18 × 102,474.09 - Step 4: Simplify right side
260,331.75x = 40,000,574,528.66 - Step 5: Solve for x
x = 40,000,574,528.66/260,331.75 - Step 6: Final answer
x = 153,652.31
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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.