Finding the Fourth Proportional to 276,645.40, 414,968.10 and 260,315.80
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Solution
The fourth proportional to 276,645.40, 414,968.10 and 260,315.80 is: 390,473.70
Step by Step Solution
- Step 1: Write the proportion equation
276,645.40 : 414,968.10 = 260,315.80 : x - Step 2: Convert to fraction form
276,645.40/414,968.10 = 260,315.80/x - Step 3: Cross multiply
276,645.40x = 414,968.10 × 260,315.80 - Step 4: Simplify right side
276,645.40x = 108,022,752,925.98 - Step 5: Solve for x
x = 108,022,752,925.98/276,645.40 - Step 6: Final answer
x = 390,473.70
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1.5x scale
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.