Finding the Fourth Proportional to 260,517.20, 390,905.40 and 102,750.80
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Solution
The fourth proportional to 260,517.20, 390,905.40 and 102,750.80 is: 154,177.32
Step by Step Solution
- Step 1: Write the proportion equation
260,517.20 : 390,905.40 = 102,750.80 : x - Step 2: Convert to fraction form
260,517.20/390,905.40 = 102,750.80/x - Step 3: Cross multiply
260,517.20x = 390,905.40 × 102,750.80 - Step 4: Simplify right side
260,517.20x = 40,165,842,574.32 - Step 5: Solve for x
x = 40,165,842,574.32/260,517.20 - Step 6: Final answer
x = 154,177.32
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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.