Finding the Fourth Proportional to 430.08, 646.08 and 334.08
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Solution
The fourth proportional to 430.08, 646.08 and 334.08 is: 501.87
Step by Step Solution
- Step 1: Write the proportion equation
430.08 : 646.08 = 334.08 : x - Step 2: Convert to fraction form
430.08/646.08 = 334.08/x - Step 3: Cross multiply
430.08x = 646.08 × 334.08 - Step 4: Simplify right side
430.08x = 215,842.41 - Step 5: Solve for x
x = 215,842.41/430.08 - Step 6: Final answer
x = 501.87
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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.