Finding the Fourth Proportional to 313,368.66, 432,453.96 and 170,128.74
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Solution
The fourth proportional to 313,368.66, 432,453.96 and 170,128.74 is: 234,780.49
Step by Step Solution
- Step 1: Write the proportion equation
313,368.66 : 432,453.96 = 170,128.74 : x - Step 2: Convert to fraction form
313,368.66/432,453.96 = 170,128.74/x - Step 3: Cross multiply
313,368.66x = 432,453.96 × 170,128.74 - Step 4: Simplify right side
313,368.66x = 73,572,847,322.81 - Step 5: Solve for x
x = 73,572,847,322.81/313,368.66 - Step 6: Final answer
x = 234,780.49
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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.