Finding the Fourth Proportional to 280,937.57, 387,719.18 and 160,117.79
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Solution
The fourth proportional to 280,937.57, 387,719.18 and 160,117.79 is: 220,976.99
Step by Step Solution
- Step 1: Write the proportion equation
280,937.57 : 387,719.18 = 160,117.79 : x - Step 2: Convert to fraction form
280,937.57/387,719.18 = 160,117.79/x - Step 3: Cross multiply
280,937.57x = 387,719.18 × 160,117.79 - Step 4: Simplify right side
280,937.57x = 62,080,738,242.21 - Step 5: Solve for x
x = 62,080,738,242.21/280,937.57 - Step 6: Final answer
x = 220,976.99
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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.