Finding the Fourth Proportional to 199,998.70, 299,220.45 and 130,014.70
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Solution
The fourth proportional to 199,998.70, 299,220.45 and 130,014.70 is: 194,516.55
Step by Step Solution
- Step 1: Write the proportion equation
199,998.70 : 299,220.45 = 130,014.70 : x - Step 2: Convert to fraction form
199,998.70/299,220.45 = 130,014.70/x - Step 3: Cross multiply
199,998.70x = 299,220.45 × 130,014.70 - Step 4: Simplify right side
199,998.70x = 38,903,057,040.62 - Step 5: Solve for x
x = 38,903,057,040.62/199,998.70 - Step 6: Final answer
x = 194,516.55
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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.