Finding the Fourth Proportional to 276,626.57, 381,781.04 and 155,791.49
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Solution
The fourth proportional to 276,626.57, 381,781.04 and 155,791.49 is: 215,012.74
Step by Step Solution
- Step 1: Write the proportion equation
276,626.57 : 381,781.04 = 155,791.49 : x - Step 2: Convert to fraction form
276,626.57/381,781.04 = 155,791.49/x - Step 3: Cross multiply
276,626.57x = 381,781.04 × 155,791.49 - Step 4: Simplify right side
276,626.57x = 59,478,234,387.49 - Step 5: Solve for x
x = 59,478,234,387.49/276,626.57 - Step 6: Final answer
x = 215,012.74
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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.