Finding the Fourth Proportional to 291,929.13, 437,893.70 and 70,313.13
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Solution
The fourth proportional to 291,929.13, 437,893.70 and 70,313.13 is: 105,469.70
Step by Step Solution
- Step 1: Write the proportion equation
291,929.13 : 437,893.70 = 70,313.13 : x - Step 2: Convert to fraction form
291,929.13/437,893.70 = 70,313.13/x - Step 3: Cross multiply
291,929.13x = 437,893.70 × 70,313.13 - Step 4: Simplify right side
291,929.13x = 30,789,676,654.28 - Step 5: Solve for x
x = 30,789,676,654.28/291,929.13 - Step 6: Final answer
x = 105,469.70
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1.5x scale
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.