Finding the Fourth Proportional to 276,093.15, 381,009.18 and 155,235.48
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Solution
The fourth proportional to 276,093.15, 381,009.18 and 155,235.48 is: 214,225.32
Step by Step Solution
- Step 1: Write the proportion equation
276,093.15 : 381,009.18 = 155,235.48 : x - Step 2: Convert to fraction form
276,093.15/381,009.18 = 155,235.48/x - Step 3: Cross multiply
276,093.15x = 381,009.18 × 155,235.48 - Step 4: Simplify right side
276,093.15x = 59,146,142,941.71 - Step 5: Solve for x
x = 59,146,142,941.71/276,093.15 - Step 6: Final answer
x = 214,225.32
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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.