Finding the Fourth Proportional to 356,292.70, 534,439.11 and 90,053.98
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Solution
The fourth proportional to 356,292.70, 534,439.11 and 90,053.98 is: 135,080.99
Step by Step Solution
- Step 1: Write the proportion equation
356,292.70 : 534,439.11 = 90,053.98 : x - Step 2: Convert to fraction form
356,292.70/534,439.11 = 90,053.98/x - Step 3: Cross multiply
356,292.70x = 534,439.11 × 90,053.98 - Step 4: Simplify right side
356,292.70x = 48,128,368,923.16 - Step 5: Solve for x
x = 48,128,368,923.16/356,292.70 - Step 6: Final answer
x = 135,080.99
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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.