Finding the Fourth Proportional to 276,643.99, 381,309.82 and 195,967.99
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Solution
The fourth proportional to 276,643.99, 381,309.82 and 195,967.99 is: 270,110.76
Step by Step Solution
- Step 1: Write the proportion equation
276,643.99 : 381,309.82 = 195,967.99 : x - Step 2: Convert to fraction form
276,643.99/381,309.82 = 195,967.99/x - Step 3: Cross multiply
276,643.99x = 381,309.82 × 195,967.99 - Step 4: Simplify right side
276,643.99x = 74,724,518,992.66 - Step 5: Solve for x
x = 74,724,518,992.66/276,643.99 - Step 6: Final answer
x = 270,110.76
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1.5x scale
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.