Finding the Fourth Proportional to 276,289.96, 381,271.62 and 155,437.96
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Solution
The fourth proportional to 276,289.96, 381,271.62 and 155,437.96 is: 214,499.59
Step by Step Solution
- Step 1: Write the proportion equation
276,289.96 : 381,271.62 = 155,437.96 : x - Step 2: Convert to fraction form
276,289.96/381,271.62 = 155,437.96/x - Step 3: Cross multiply
276,289.96x = 381,271.62 × 155,437.96 - Step 4: Simplify right side
276,289.96x = 59,264,082,818.70 - Step 5: Solve for x
x = 59,264,082,818.70/276,289.96 - Step 6: Final answer
x = 214,499.59
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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.