Finding the Fourth Proportional to 352,661.13, 528,991.69 and 103,343.13
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Solution
The fourth proportional to 352,661.13, 528,991.69 and 103,343.13 is: 155,014.69
Step by Step Solution
- Step 1: Write the proportion equation
352,661.13 : 528,991.69 = 103,343.13 : x - Step 2: Convert to fraction form
352,661.13/528,991.69 = 103,343.13/x - Step 3: Cross multiply
352,661.13x = 528,991.69 × 103,343.13 - Step 4: Simplify right side
352,661.13x = 54,667,656,988.59 - Step 5: Solve for x
x = 54,667,656,988.59/352,661.13 - Step 6: Final answer
x = 155,014.69
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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.