Finding the Fourth Proportional to 438,616.81, 605,292.11 and 237,412.81
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Solution
The fourth proportional to 438,616.81, 605,292.11 and 237,412.81 is: 327,630.17
Step by Step Solution
- Step 1: Write the proportion equation
438,616.81 : 605,292.11 = 237,412.81 : x - Step 2: Convert to fraction form
438,616.81/605,292.11 = 237,412.81/x - Step 3: Cross multiply
438,616.81x = 605,292.11 × 237,412.81 - Step 4: Simplify right side
438,616.81x = 143,704,100,705.93 - Step 5: Solve for x
x = 143,704,100,705.93/438,616.81 - Step 6: Final answer
x = 327,630.17
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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.