Finding the Fourth Proportional to 346,715.80, 520,073.70 and 189,251.80
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Solution
The fourth proportional to 346,715.80, 520,073.70 and 189,251.80 is: 283,877.70
Step by Step Solution
- Step 1: Write the proportion equation
346,715.80 : 520,073.70 = 189,251.80 : x - Step 2: Convert to fraction form
346,715.80/520,073.70 = 189,251.80/x - Step 3: Cross multiply
346,715.80x = 520,073.70 × 189,251.80 - Step 4: Simplify right side
346,715.80x = 98,424,883,857.66 - Step 5: Solve for x
x = 98,424,883,857.66/346,715.80 - Step 6: Final answer
x = 283,877.70
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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.