Finding the Fourth Proportional to 423,145.28, 634,722.02 and 107,602.19
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Solution
The fourth proportional to 423,145.28, 634,722.02 and 107,602.19 is: 161,404.32
Step by Step Solution
- Step 1: Write the proportion equation
423,145.28 : 634,722.02 = 107,602.19 : x - Step 2: Convert to fraction form
423,145.28/634,722.02 = 107,602.19/x - Step 3: Cross multiply
423,145.28x = 634,722.02 × 107,602.19 - Step 4: Simplify right side
423,145.28x = 68,297,476,219.61 - Step 5: Solve for x
x = 68,297,476,219.61/423,145.28 - Step 6: Final answer
x = 161,404.32
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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.