Finding the Fourth Proportional to 212,315.04, 292,987.44 and 116,812.80
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Solution
The fourth proportional to 212,315.04, 292,987.44 and 116,812.80 is: 161,197.64
Step by Step Solution
- Step 1: Write the proportion equation
212,315.04 : 292,987.44 = 116,812.80 : x - Step 2: Convert to fraction form
212,315.04/292,987.44 = 116,812.80/x - Step 3: Cross multiply
212,315.04x = 292,987.44 × 116,812.80 - Step 4: Simplify right side
212,315.04x = 34,224,683,231.23 - Step 5: Solve for x
x = 34,224,683,231.23/212,315.04 - Step 6: Final answer
x = 161,197.64
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1.5x scale
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.