Finding the Fourth Proportional to 284,796.19, 392,929.95 and 189,319.06
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Solution
The fourth proportional to 284,796.19, 392,929.95 and 189,319.06 is: 261,201.28
Step by Step Solution
- Step 1: Write the proportion equation
284,796.19 : 392,929.95 = 189,319.06 : x - Step 2: Convert to fraction form
284,796.19/392,929.95 = 189,319.06/x - Step 3: Cross multiply
284,796.19x = 392,929.95 × 189,319.06 - Step 4: Simplify right side
284,796.19x = 74,389,128,779.85 - Step 5: Solve for x
x = 74,389,128,779.85/284,796.19 - Step 6: Final answer
x = 261,201.28
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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.