Finding the Fourth Proportional to 256,234.18, 384,351.28 and 129,854.74
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Solution
The fourth proportional to 256,234.18, 384,351.28 and 129,854.74 is: 194,782.12
Step by Step Solution
- Step 1: Write the proportion equation
256,234.18 : 384,351.28 = 129,854.74 : x - Step 2: Convert to fraction form
256,234.18/384,351.28 = 129,854.74/x - Step 3: Cross multiply
256,234.18x = 384,351.28 × 129,854.74 - Step 4: Simplify right side
256,234.18x = 49,909,835,533.07 - Step 5: Solve for x
x = 49,909,835,533.07/256,234.18 - Step 6: Final answer
x = 194,782.12
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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.