Finding the Fourth Proportional to 284,790.08, 393,000.48 and 155,731.68
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Solution
The fourth proportional to 284,790.08, 393,000.48 and 155,731.68 is: 214,904.34
Step by Step Solution
- Step 1: Write the proportion equation
284,790.08 : 393,000.48 = 155,731.68 : x - Step 2: Convert to fraction form
284,790.08/393,000.48 = 155,731.68/x - Step 3: Cross multiply
284,790.08x = 393,000.48 × 155,731.68 - Step 4: Simplify right side
284,790.08x = 61,202,624,991.21 - Step 5: Solve for x
x = 61,202,624,991.21/284,790.08 - Step 6: Final answer
x = 214,904.34
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1.5x scale
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.