Finding the Fourth Proportional to 340.34, 469.68 and 207.65
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Solution
The fourth proportional to 340.34, 469.68 and 207.65 is: 286.57
Step by Step Solution
- Step 1: Write the proportion equation
340.34 : 469.68 = 207.65 : x - Step 2: Convert to fraction form
340.34/469.68 = 207.65/x - Step 3: Cross multiply
340.34x = 469.68 × 207.65 - Step 4: Simplify right side
340.34x = 97,529.05 - Step 5: Solve for x
x = 97,529.05/340.34 - Step 6: Final answer
x = 286.57
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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.