Finding the Fourth Proportional to 201,985.20, 302,977.80 and 170,881.20
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Solution
The fourth proportional to 201,985.20, 302,977.80 and 170,881.20 is: 256,321.80
Step by Step Solution
- Step 1: Write the proportion equation
201,985.20 : 302,977.80 = 170,881.20 : x - Step 2: Convert to fraction form
201,985.20/302,977.80 = 170,881.20/x - Step 3: Cross multiply
201,985.20x = 302,977.80 × 170,881.20 - Step 4: Simplify right side
201,985.20x = 51,773,210,037.36 - Step 5: Solve for x
x = 51,773,210,037.36/201,985.20 - Step 6: Final answer
x = 256,321.80
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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.