Finding the Fourth Proportional to 276,748.65, 381,862.40 and 155,864.07
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Solution
The fourth proportional to 276,748.65, 381,862.40 and 155,864.07 is: 215,063.84
Step by Step Solution
- Step 1: Write the proportion equation
276,748.65 : 381,862.40 = 155,864.07 : x - Step 2: Convert to fraction form
276,748.65/381,862.40 = 155,864.07/x - Step 3: Cross multiply
276,748.65x = 381,862.40 × 155,864.07 - Step 4: Simplify right side
276,748.65x = 59,518,627,064.65 - Step 5: Solve for x
x = 59,518,627,064.65/276,748.65 - Step 6: Final answer
x = 215,063.84
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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.