Finding the Fourth Proportional to 276,320.13, 381,292.97 and 155,451.15
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Solution
The fourth proportional to 276,320.13, 381,292.97 and 155,451.15 is: 214,506.38
Step by Step Solution
- Step 1: Write the proportion equation
276,320.13 : 381,292.97 = 155,451.15 : x - Step 2: Convert to fraction form
276,320.13/381,292.97 = 155,451.15/x - Step 3: Cross multiply
276,320.13x = 381,292.97 × 155,451.15 - Step 4: Simplify right side
276,320.13x = 59,272,429,896.16 - Step 5: Solve for x
x = 59,272,429,896.16/276,320.13 - Step 6: Final answer
x = 214,506.38
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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.