Finding the Fourth Proportional to 284,281.56, 392,305.56 and 155,219.63
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Solution
The fourth proportional to 284,281.56, 392,305.56 and 155,219.63 is: 214,201.45
Step by Step Solution
- Step 1: Write the proportion equation
284,281.56 : 392,305.56 = 155,219.63 : x - Step 2: Convert to fraction form
284,281.56/392,305.56 = 155,219.63/x - Step 3: Cross multiply
284,281.56x = 392,305.56 × 155,219.63 - Step 4: Simplify right side
284,281.56x = 60,893,521,908.62 - Step 5: Solve for x
x = 60,893,521,908.62/284,281.56 - Step 6: Final answer
x = 214,201.45
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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.