Finding the Fourth Proportional to 356,749.26, 535,122.81 and 90,509.28
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Solution
The fourth proportional to 356,749.26, 535,122.81 and 90,509.28 is: 135,763.65
Step by Step Solution
- Step 1: Write the proportion equation
356,749.26 : 535,122.81 = 90,509.28 : x - Step 2: Convert to fraction form
356,749.26/535,122.81 = 90,509.28/x - Step 3: Cross multiply
356,749.26x = 535,122.81 × 90,509.28 - Step 4: Simplify right side
356,749.26x = 48,433,580,244.68 - Step 5: Solve for x
x = 48,433,580,244.68/356,749.26 - Step 6: Final answer
x = 135,763.65
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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.