Finding the Fourth Proportional to 340.58, 511.14 and 135.20
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Solution
The fourth proportional to 340.58, 511.14 and 135.20 is: 202.91
Step by Step Solution
- Step 1: Write the proportion equation
340.58 : 511.14 = 135.20 : x - Step 2: Convert to fraction form
340.58/511.14 = 135.20/x - Step 3: Cross multiply
340.58x = 511.14 × 135.20 - Step 4: Simplify right side
340.58x = 69,106.13 - Step 5: Solve for x
x = 69,106.13/340.58 - Step 6: Final answer
x = 202.91
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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.