Finding the Fourth Proportional to 864.41, 1,295.80 and 286.88
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Solution
The fourth proportional to 864.41, 1,295.80 and 286.88 is: 430.04
Step by Step Solution
- Step 1: Write the proportion equation
864.41 : 1,295.80 = 286.88 : x - Step 2: Convert to fraction form
864.41/1,295.80 = 286.88/x - Step 3: Cross multiply
864.41x = 1,295.80 × 286.88 - Step 4: Simplify right side
864.41x = 371,731.91 - Step 5: Solve for x
x = 371,731.91/864.41 - Step 6: Final answer
x = 430.04
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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.