Finding the Fourth Proportional to 276,701.06, 381,781.86 and 155,818.28
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Solution
The fourth proportional to 276,701.06, 381,781.86 and 155,818.28 is: 214,992.28
Step by Step Solution
- Step 1: Write the proportion equation
276,701.06 : 381,781.86 = 155,818.28 : x - Step 2: Convert to fraction form
276,701.06/381,781.86 = 155,818.28/x - Step 3: Cross multiply
276,701.06x = 381,781.86 × 155,818.28 - Step 4: Simplify right side
276,701.06x = 59,488,593,130.54 - Step 5: Solve for x
x = 59,488,593,130.54/276,701.06 - Step 6: Final answer
x = 214,992.28
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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.