Finding the Fourth Proportional to 276,565.91, 381,697.29 and 155,730.74
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Solution
The fourth proportional to 276,565.91, 381,697.29 and 155,730.74 is: 214,928.88
Step by Step Solution
- Step 1: Write the proportion equation
276,565.91 : 381,697.29 = 155,730.74 : x - Step 2: Convert to fraction form
276,565.91/381,697.29 = 155,730.74/x - Step 3: Cross multiply
276,565.91x = 381,697.29 × 155,730.74 - Step 4: Simplify right side
276,565.91x = 59,441,999,519.21 - Step 5: Solve for x
x = 59,441,999,519.21/276,565.91 - Step 6: Final answer
x = 214,928.88
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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.