Finding the Fourth Proportional to 278,624.12, 384,502.68 and 151,299.68
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Solution
The fourth proportional to 278,624.12, 384,502.68 and 151,299.68 is: 208,794.32
Step by Step Solution
- Step 1: Write the proportion equation
278,624.12 : 384,502.68 = 151,299.68 : x - Step 2: Convert to fraction form
278,624.12/384,502.68 = 151,299.68/x - Step 3: Cross multiply
278,624.12x = 384,502.68 × 151,299.68 - Step 4: Simplify right side
278,624.12x = 58,175,132,443.14 - Step 5: Solve for x
x = 58,175,132,443.14/278,624.12 - Step 6: Final answer
x = 208,794.32
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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.