Finding the Fourth Proportional to 276,283.06, 381,239.73 and 155,421.84
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Solution
The fourth proportional to 276,283.06, 381,239.73 and 155,421.84 is: 214,464.76
Step by Step Solution
- Step 1: Write the proportion equation
276,283.06 : 381,239.73 = 155,421.84 : x - Step 2: Convert to fraction form
276,283.06/381,239.73 = 155,421.84/x - Step 3: Cross multiply
276,283.06x = 381,239.73 × 155,421.84 - Step 4: Simplify right side
276,283.06x = 59,252,980,317.70 - Step 5: Solve for x
x = 59,252,980,317.70/276,283.06 - Step 6: Final answer
x = 214,464.76
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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.