Finding the Fourth Proportional to 278,567.10, 417,802.05 and 100,982.70
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Solution
The fourth proportional to 278,567.10, 417,802.05 and 100,982.70 is: 151,456.43
Step by Step Solution
- Step 1: Write the proportion equation
278,567.10 : 417,802.05 = 100,982.70 : x - Step 2: Convert to fraction form
278,567.10/417,802.05 = 100,982.70/x - Step 3: Cross multiply
278,567.10x = 417,802.05 × 100,982.70 - Step 4: Simplify right side
278,567.10x = 42,190,779,074.54 - Step 5: Solve for x
x = 42,190,779,074.54/278,567.10 - Step 6: Final answer
x = 151,456.43
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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.