Finding the Fourth Proportional to 303,761.70, 455,642.55 and 286,265.70
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Solution
The fourth proportional to 303,761.70, 455,642.55 and 286,265.70 is: 429,398.55
Step by Step Solution
- Step 1: Write the proportion equation
303,761.70 : 455,642.55 = 286,265.70 : x - Step 2: Convert to fraction form
303,761.70/455,642.55 = 286,265.70/x - Step 3: Cross multiply
303,761.70x = 455,642.55 × 286,265.70 - Step 4: Simplify right side
303,761.70x = 130,434,833,525.54 - Step 5: Solve for x
x = 130,434,833,525.54/303,761.70 - Step 6: Final answer
x = 429,398.55
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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.