Finding the Fourth Proportional to 403,720.68, 605,128.40 and 163,778.84
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Solution
The fourth proportional to 403,720.68, 605,128.40 and 163,778.84 is: 245,484.64
Step by Step Solution
- Step 1: Write the proportion equation
403,720.68 : 605,128.40 = 163,778.84 : x - Step 2: Convert to fraction form
403,720.68/605,128.40 = 163,778.84/x - Step 3: Cross multiply
403,720.68x = 605,128.40 × 163,778.84 - Step 4: Simplify right side
403,720.68x = 99,107,227,403.06 - Step 5: Solve for x
x = 99,107,227,403.06/403,720.68 - Step 6: Final answer
x = 245,484.64
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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.