Finding the Fourth Proportional to 286,886.41, 430,381.76 and 118,313.06
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Solution
The fourth proportional to 286,886.41, 430,381.76 and 118,313.06 is: 177,491.09
Step by Step Solution
- Step 1: Write the proportion equation
286,886.41 : 430,381.76 = 118,313.06 : x - Step 2: Convert to fraction form
286,886.41/430,381.76 = 118,313.06/x - Step 3: Cross multiply
286,886.41x = 430,381.76 × 118,313.06 - Step 4: Simplify right side
286,886.41x = 50,919,780,250.31 - Step 5: Solve for x
x = 50,919,780,250.31/286,886.41 - Step 6: Final answer
x = 177,491.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.