Finding the Fourth Proportional to 320,243.42, 480,202.09 and 106,934.65
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Solution
The fourth proportional to 320,243.42, 480,202.09 and 106,934.65 is: 160,347.53
Step by Step Solution
- Step 1: Write the proportion equation
320,243.42 : 480,202.09 = 106,934.65 : x - Step 2: Convert to fraction form
320,243.42/480,202.09 = 106,934.65/x - Step 3: Cross multiply
320,243.42x = 480,202.09 × 106,934.65 - Step 4: Simplify right side
320,243.42x = 51,350,240,955.58 - Step 5: Solve for x
x = 51,350,240,955.58/320,243.42 - Step 6: Final answer
x = 160,347.53
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1.5x scale
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.