Finding the Fourth Proportional to 456.64, 630.08 and 260.08
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Solution
The fourth proportional to 456.64, 630.08 and 260.08 is: 358.86
Step by Step Solution
- Step 1: Write the proportion equation
456.64 : 630.08 = 260.08 : x - Step 2: Convert to fraction form
456.64/630.08 = 260.08/x - Step 3: Cross multiply
456.64x = 630.08 × 260.08 - Step 4: Simplify right side
456.64x = 163,871.21 - Step 5: Solve for x
x = 163,871.21/456.64 - Step 6: Final answer
x = 358.86
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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.