Finding the Fourth Proportional to 328,416.08, 453,421.04 and 251,793.09
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Solution
The fourth proportional to 328,416.08, 453,421.04 and 251,793.09 is: 347,633.06
Step by Step Solution
- Step 1: Write the proportion equation
328,416.08 : 453,421.04 = 251,793.09 : x - Step 2: Convert to fraction form
328,416.08/453,421.04 = 251,793.09/x - Step 3: Cross multiply
328,416.08x = 453,421.04 × 251,793.09 - Step 4: Simplify right side
328,416.08x = 114,168,283,473.65 - Step 5: Solve for x
x = 114,168,283,473.65/328,416.08 - Step 6: Final answer
x = 347,633.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.