Finding the Fourth Proportional to 213,159.81, 317,886.99 and 210,299.67
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Solution
The fourth proportional to 213,159.81, 317,886.99 and 210,299.67 is: 313,621.64
Step by Step Solution
- Step 1: Write the proportion equation
213,159.81 : 317,886.99 = 210,299.67 : x - Step 2: Convert to fraction form
213,159.81/317,886.99 = 210,299.67/x - Step 3: Cross multiply
213,159.81x = 317,886.99 × 210,299.67 - Step 4: Simplify right side
213,159.81x = 66,851,529,094.29 - Step 5: Solve for x
x = 66,851,529,094.29/213,159.81 - Step 6: Final answer
x = 313,621.64
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.