Finding the Fourth Proportional to 256,289.80, 384,434.70 and 242,511.70
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Solution
The fourth proportional to 256,289.80, 384,434.70 and 242,511.70 is: 363,767.55
Step by Step Solution
- Step 1: Write the proportion equation
256,289.80 : 384,434.70 = 242,511.70 : x - Step 2: Convert to fraction form
256,289.80/384,434.70 = 242,511.70/x - Step 3: Cross multiply
256,289.80x = 384,434.70 × 242,511.70 - Step 4: Simplify right side
256,289.80x = 93,229,912,635.99 - Step 5: Solve for x
x = 93,229,912,635.99/256,289.80 - Step 6: Final answer
x = 363,767.55
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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.