Finding the Fourth Proportional to 276,276.08, 381,260.44 and 155,417.46
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Solution
The fourth proportional to 276,276.08, 381,260.44 and 155,417.46 is: 214,475.78
Step by Step Solution
- Step 1: Write the proportion equation
276,276.08 : 381,260.44 = 155,417.46 : x - Step 2: Convert to fraction form
276,276.08/381,260.44 = 155,417.46/x - Step 3: Cross multiply
276,276.08x = 381,260.44 × 155,417.46 - Step 4: Simplify right side
276,276.08x = 59,254,527,759.15 - Step 5: Solve for x
x = 59,254,527,759.15/276,276.08 - Step 6: Final answer
x = 214,475.78
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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.